THE SHIP LOOKED EVEN MORE IMPRESSIVE THAN TREVIZE - WITH HIS memories of the time when the new cruiser-class had been glowingly publicized-had expected.
    It was not the size that was impressive-for it was rather small. It was designed for maneuverability and speed, for totally gravitic engines, and most of all for advanced computerization. It didn't need size-size would have defeated its purpose.
    It was a one-man device that could replace, with advantage, the older ships that required a crew of a dozen or more. With a second or even a third person to establish shifts of duty, one such ship could fight off a flotilla of much larger non-Foundation ships. In addition, it could outspeed and escape from any other ship in existence.
    There was a sleekness³ about it-not a wasted line, not a superfluous⁴ curve inside or out. Every cubic meter of volume was used to its maximum, so as to leave a paradoxical aura of spaciousness⁵ within. Nothing the Mayor might have said about the importance of his mission could have impressed Trevize more than the ship with which he was asked to perform it.
    Branno the Bronze, he thought with chagrin⁶, had maneuvered⁷ him into a dangerous mission of the greatest significance. He might not have accepted with such determination had she not so arranged matters that he wanted to show her what he could do.
    As for Pelorat, he was transported with wonder. "Would you believe," he said, placing a gentle finger on the hull⁸ before he had climbed inside, "that I've never been close to a spaceship?"
    "I'll believe it, of course, if you say so, Professor, but how did you manage it?"
    "I scarcely know, to be honest with you, dear fel-, I mean, my dear Trevize. I presume I was overly concerned with my research. When one's home has a really excellent computer capable of reaching other computers anywhere in the Galaxy

首页  上一页 [1] [2]  [3]  下一页  尾页

点击收听单词发音  

1 ass
n.驴；傻瓜，蠢笨的人
参考例句：
He is not an ass as they make him.他不象大家猜想的那样笨。 An ass endures his burden but not more than his burden.驴能负重但不能超过它能力所负担的。

2 maneuver
n.策略[pl.]演习；v.(巧妙)控制；用策略
参考例句：
All the fighters landed safely on the airport after the military maneuver.在军事演习后，所有战斗机都安全降落在机场上。 I did get her attention with this maneuver.我用这个策略确实引起了她的注意。

3 sleekness
油滑； 油光发亮； 时髦阔气； 线条明快
参考例句：
The sleekness of his appearance reminded me of his financial successes. 他着装的光鲜告诉我他财大气粗。 Urban sleekness and traditional quaintness highlight the contrasts of Hong Kong. 城市的优美造型和传统的古雅情趣突出了香港的种种反差。

4 superfluous
adj.过多的，过剩的，多余的
参考例句：
She fined away superfluous matter in the design. 她删去了这图案中多余的东西。 That request seemed superfluous when I wrote it.我这样写的时候觉得这个请求似乎是多此一举。

5 spaciousness
n.宽敞
参考例句：
A high ceiling gives a feeling of airness and spaciousness. 天花板高给人一种通风和宽敞的感觉。 The tremendous spaciousness of it was glowing with rich gold. 苍茫辽阔的景色染上了一片瑰丽浓艳的金黄色。

6 chagrin
n.懊恼；气愤；委屈
参考例句：
His increasingly visible chagrin sets up a vicious circle.他的明显的不满引起了一种恶性循环。 Much to his chagrin,he did not win the race.使他大为懊恼的是他赛跑没获胜。

7 maneuvered
v.移动，用策略( maneuver的过去式和过去分词 )；操纵
参考例句：
I maneuvered my way among the tables to the back corner of the place. 我在那些桌子间穿行，来到那地方后面的角落。 来自辞典例句 The admiral maneuvered his ships in the battle plan. 舰队司令按作战计划进行舰队演习。 来自辞典例句

8 hull
n.船身；(果、实等的)外壳；vt.去(谷物等)壳
参考例句：
The outer surface of ship's hull is very hard.船体的外表面非常坚硬。 The boat's hull has been staved in by the tremendous seas.小船壳让巨浪打穿了。

9 galaxy
n.星系；银河系；一群(杰出或著名的人物)
参考例句：
The earth is one of the planets in the Galaxy.地球是银河系中的星球之一。 The company has a galaxy of talent.该公司拥有一批优秀的人才。

10 budge
v.移动一点儿；改变立场
参考例句：
We tried to lift the rock but it wouldn't budge.我们试图把大石头抬起来，但它连动都没动一下。 She wouldn't budge on the issue.她在这个问题上不肯让步。

11 specialized
adj.专门的，专业化的
参考例句：
There are many specialized agencies in the United Nations.联合国有许多专门机构。 These tools are very specialized.这些是专用工具。

12 culmination
n.顶点；最高潮
参考例句：
The space race reached its culmination in the first moon walk.太空竞争以第一次在月球行走而达到顶峰。 It may truly be regarded as the culmination of classical Greek geometry.这确实可以看成是古典希腊几何的登峰造级之作。

13 grooving
n.（轧辊）孔型设计v.沟( groove的现在分词 )；槽；老一套；（某种）音乐节奏
参考例句：
It can be used for cutting ceramics, grooving and beveling. 该切机具备切割、切槽、倒角等功能。 来自互联网 Top-quality steel blades are used to guarantee smoothness grooving. 选任优质锯齿型开槽刀片，保证开槽光洁度。 来自互联网

14 fully
adv.完全地，全部地，彻底地；充分地
参考例句：
The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。 They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。

15 overtime
adj.超时的，加班的；adv.加班地
参考例句：
They are working overtime to finish the work.为了完成任务他们正在加班加点地工作。 He was paid for the overtime he worked.他领到了加班费。

16 marvel
vi.(at)惊叹vt.感到惊异；n.令人惊异的事
参考例句：
The robot is a marvel of modern engineering.机器人是现代工程技术的奇迹。 The operation was a marvel of medical skill.这次手术是医术上的一个奇迹。

17 utilization
n.利用，效用
参考例句：
Computer has found an increasingly wide utilization in all fields.电子计算机已越来越广泛地在各个领域得到应用。 Modern forms of agricultural utilization,have completely refuted this assumption.现代农业利用形式，完全驳倒了这种想象。

18 parlor
n.店铺，营业室；会客室，客厅
参考例句：
She was lying on a small settee in the parlor.她躺在客厅的一张小长椅上。 Is there a pizza parlor in the neighborhood?附近有没有比萨店？

19 vaguely
adv.含糊地，暖昧地
参考例句：
He had talked vaguely of going to work abroad.他含糊其词地说了到国外工作的事。 He looked vaguely before him with unseeing eyes.他迷迷糊糊的望着前面，对一切都视而不见。

20 shrugged
vt.耸肩（shrug的过去式与过去分词形式）
参考例句：
Sam shrugged and said nothing. 萨姆耸耸肩膀，什么也没说。 She shrugged, feigning nonchalance. 她耸耸肩，装出一副无所谓的样子。 来自《简明英汉词典》

21 automated
a.自动化的
参考例句：
The entire manufacturing process has been automated. 整个生产过程已自动化。 Automated Highway System (AHS) is recently regarded as one subsystem of Intelligent Transport System (ITS). 近年来自动公路系统(Automated Highway System,AHS)，作为智能运输系统的子系统之一越来越受到重视。

22 trickle
vi.淌，滴，流出，慢慢移动，逐渐消散
参考例句：
The stream has thinned down to a mere trickle.这条小河变成细流了。 The flood of cars has now slowed to a trickle.汹涌的车流现在已经变得稀稀拉拉。

23 apprehension
n.理解，领悟；逮捕，拘捕；忧虑
参考例句：
There were still areas of doubt and her apprehension grew.有些地方仍然存疑，于是她越来越担心。 She is a girl of weak apprehension.她是一个理解力很差的女孩。

24 harridan
n.恶妇；丑老大婆
参考例句：
She was a mean old harridan.她是个刻薄的老泼妇。 Homer's epic is not just composed of harridan wives and brave men.荷马的史诗不是只有暴躁的妻子和勇敢的战士。

25 animation
n.活泼，兴奋，卡通片／动画片的制作
参考例句：
They are full of animation as they talked about their childhood.当他们谈及童年的往事时都非常兴奋。 The animation of China made a great progress.中国的卡通片制作取得很大发展。

26 hood
n.头巾，兜帽，覆盖；v.罩上，以头巾覆盖
参考例句：
She is wearing a red cloak with a hood.她穿着一件红色带兜帽的披风。 The car hood was dented in.汽车的发动机罩已凹了进去。

27 deliberately
adv.审慎地；蓄意地；故意地
参考例句：
The girl gave the show away deliberately.女孩故意泄露秘密。 They deliberately shifted off the argument.他们故意回避这个论点。

28 knack
n.诀窍，做事情的灵巧的，便利的方法
参考例句：
He has a knack of teaching arithmetic.他教算术有诀窍。 Making omelettes isn't difficult,but there's a knack to it.做煎蛋饼并不难，但有窍门。

29 hitch
v.免费搭(车旅行)；系住；急提；n.故障；急拉
参考例句：
They had an eighty-mile journey and decided to hitch hike.他们要走80英里的路程，最后决定搭便车。 All the candidates are able to answer the questions without any hitch.所有报考者都能对答如流。

30 lieutenant
n.陆军中尉，海军上尉；代理官员，副职官员
参考例句：
He was promoted to be a lieutenant in the army.他被提升为陆军中尉。 He prevailed on the lieutenant to send in a short note.他说动那个副官，递上了一张简短的便条进去。

31 maneuvers
n.策略，谋略，花招( maneuver的名词复数 )
参考例句：
He suspected at once that she had been spying upon his maneuvers. 他立刻猜想到，她已经侦察到他的行动。 来自辞典例句 Maneuvers in Guizhou occupied the Reds for four months. 贵州境内的作战占了红军四个月的时间。 来自辞典例句

32 sergeant
n.警官，中士
参考例句：
His elder brother is a sergeant.他哥哥是个警官。 How many stripes are there on the sleeve of a sergeant?陆军中士的袖子上有多少条纹？

33 nonchalance
n.冷淡，漠不关心
参考例句：
She took her situation with much nonchalance.她对这个处境毫不介意。 He conceals his worries behind a mask of nonchalance.他装作若无其事，借以掩饰内心的不安。

34 embarrassment
n.尴尬；使人为难的人(事物)；障碍；窘迫
参考例句：
She could have died away with embarrassment.她窘迫得要死。 Coughing at a concert can be a real embarrassment.在音乐会上咳嗽真会使人难堪。

35 tilted
v. 倾斜的
参考例句：
Suddenly the boat tilted to one side. 小船突然倾向一侧。 She tilted her chin at him defiantly. 她向他翘起下巴表示挑衅。

36 velvety
adj. 像天鹅绒的, 轻软光滑的, 柔软的
参考例句：
a velvety red wine 醇厚的红葡萄酒 Her skin was admired for its velvety softness. 她的皮肤如天鹅绒般柔软，令人赞叹。

37 astonishment
n.惊奇，惊异
参考例句：
They heard him give a loud shout of astonishment.他们听见他惊奇地大叫一声。 I was filled with astonishment at her strange action.我对她的奇怪举动不胜惊异。

38 vagrant
n.流浪者，游民；adj.流浪的，漂泊不定的
参考例句：
A vagrant is everywhere at home.流浪者四海为家。 He lived on the street as a vagrant.他以在大街上乞讨为生。

39 skull
n.头骨；颅骨
参考例句：
The skull bones fuse between the ages of fifteen and twenty-five.头骨在15至25岁之间长合。 He fell out of the window and cracked his skull.他从窗子摔了出去，跌裂了颅骨。

40 drowsy
adj.昏昏欲睡的，令人发困的
参考例句：
Exhaust fumes made him drowsy and brought on a headache.废气把他熏得昏昏沉沉，还引起了头疼。 I feel drowsy after lunch every day.每天午饭后我就想睡觉。

41 acuity
n.敏锐，（疾病的）剧烈
参考例句：
We work on improving visual acuity.我们致力于提高视觉的敏锐度。 The nurse may also measure visual acuity.护士还可以检查视敏度。

42 merged
（使）混合( merge的过去式和过去分词 )； 相融； 融入； 渐渐消失在某物中
参考例句：
Turf wars are inevitable when two departments are merged. 两个部门合并时总免不了争争权限。 The small shops were merged into a large market. 那些小商店合并成为一个大商场。

43 ail
v.生病，折磨，苦恼
参考例句：
It may provide answers to some of the problems that ail America.这一点可能解答困扰美国的某些问题。 Seek your sauce where you get your ail.心痛还须心药治。

44 analogous
adj.相似的；类似的
参考例句：
The two situations are roughly analogous.两种情況大致相似。 The company is in a position closely analogous to that of its main rival.该公司与主要竞争对手的处境极为相似。

45 override
vt.不顾，不理睬，否决；压倒，优先于
参考例句：
The welfare of a child should always override the wishes of its parents.孩子的幸福安康应该永远比父母的愿望来得更重要。 I'm applying in advance for the authority to override him.我提前申请当局对他进行否决。

46 flexibility
n.柔韧性，弹性，（光的）折射性，灵活性
参考例句：
Her great strength lies in her flexibility.她的优势在于她灵活变通。 The flexibility of a man's muscles will lessen as he becomes old.人老了肌肉的柔韧性将降低。

47 deride
v.嘲弄，愚弄
参考例句：
Some critics deride the group as self - appointed food police.一些批评人士嘲讽这个组织为“自封的食品警察”。 They deride his effort as childish.他们嘲笑他的努力，认为太孩子气。

48 swarming
密集( swarm的现在分词 )； 云集； 成群地移动； 蜜蜂或其他飞行昆虫成群地飞来飞去
参考例句：
The sacks of rice were swarming with bugs. 一袋袋的米里长满了虫子。 The beach is swarming with bathers. 海滩满是海水浴的人。

49 fusion
n.溶化；熔解；熔化状态，熔和；熔接
参考例句：
Brass is formed by the fusion of copper and zinc. 黄铜是通过铜和锌的熔合而成的。 This alloy is formed by the fusion of two types of metal.这种合金是用两种金属熔合而成的。

50 orientation
n.方向，目标；熟悉，适应，情况介绍
参考例句：
Children need some orientation when they go to school.小孩子上学时需要适应。 The traveller found his orientation with the aid of a good map.旅行者借助一幅好地图得知自己的方向。

51 strap
n.皮带，带子；v.用带扣住，束牢；用绷带包扎
参考例句：
She held onto a strap to steady herself.她抓住拉手吊带以便站稳。 The nurse will strap up your wound.护士会绑扎你的伤口。

52 acceleration
n.加速，加速度
参考例句：
All spacemen must be able to bear acceleration.所有太空人都应能承受加速度。 He has also called for an acceleration of political reforms.他同时呼吁加快政治改革的步伐。

53 velocity
n.速度，速率
参考例句：
Einstein's theory links energy with mass and velocity of light.爱因斯坦的理论把能量同质量和光速联系起来。 The velocity of light is about 300000 kilometres per second.光速约为每秒300000公里。

54 simultaneously
adv.同时发生地，同时进行地
参考例句：
The radar beam can track a number of targets almost simultaneously.雷达波几乎可以同时追着多个目标。 The Windows allow a computer user to execute multiple programs simultaneously.Windows允许计算机用户同时运行多个程序。

55 perfectly
adv.完美地，无可非议地，彻底地
参考例句：
The witnesses were each perfectly certain of what they said.证人们个个对自己所说的话十分肯定。 Everything that we're doing is all perfectly above board.我们做的每件事情都是光明正大的。

56 warship
n.军舰，战舰
参考例句：
He is serving on a warship in the Pacific.他在太平洋海域的一艘军舰上服役。 The warship was making towards the pier.军舰正驶向码头。

57 tenuous
adj.细薄的，稀薄的，空洞的
参考例句：
He has a rather tenuous grasp of reality.他对现实认识很肤浅。 The air ten miles above the earth is very tenuous.距离地面十公里的空气十分稀薄。

58 meteorite
n.陨石；流星
参考例句：
The meteorite in Jilin Exhibition Hall is believed to be the largest in the world.吉林展览馆的陨石被认为是世界上最大的。 The famous Murchison meteorite smashed into the Australian ground in 1969.1969年著名的默奇森陨石轰然坠落在澳大利亚。

59 meteorites
n.陨星( meteorite的名词复数 )
参考例句：
Small meteorites have left impact craters all over the planet's surface. 这个行星的表面布满了小块陨石留下的撞击坑。 来自《简明英汉词典》 One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites. 地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的。 来自《简明英汉词典》

60 millennia
n.一千年，千禧年
参考例句：
For two millennia, exogamy was a major transgression for Jews. 两千年来，异族通婚一直是犹太人的一大禁忌。 In the course of millennia, the dinosaurs died out. 在几千年的时间里，恐龙逐渐死绝了。

61 drawn
v.拖，拉，拔出；adj.憔悴的，紧张的
参考例句：
All the characters in the story are drawn from life.故事中的所有人物都取材于生活。 Her gaze was drawn irresistibly to the scene outside.她的目光禁不住被外面的风景所吸引。

62 abruptly
adv.突然地，出其不意地
参考例句：
He gestured abruptly for Virginia to get in the car.他粗鲁地示意弗吉尼亚上车。 I was abruptly notified that a half-hour speech was expected of me.我突然被通知要讲半个小时的话。

63 goggling
v.睁大眼睛瞪视， （惊讶的）转动眼珠( goggle的现在分词 )
参考例句：

64 briefly
adv.简单地，简短地
参考例句：
I want to touch briefly on another aspect of the problem.我想简单地谈一下这个问题的另一方面。 He was kidnapped and briefly detained by a terrorist group.他被一个恐怖组织绑架并短暂拘禁。

65 luminous
adj.发光的，发亮的；光明的；明白易懂的；有启发的
参考例句：
There are luminous knobs on all the doors in my house.我家所有门上都安有夜光把手。 Most clocks and watches in this shop are in luminous paint.这家商店出售的大多数钟表都涂了发光漆。

66 scattering
n.[物]散射；散乱，分散；在媒介质中的散播adj.散乱的；分散在不同范围的；广泛扩散的；（选票）数量分散的v.散射(scatter的ing形式)；散布；驱散
参考例句：
The child felle into a rage and began scattering its toys about. 这孩子突发狂怒，把玩具扔得满地都是。 来自《简明英汉词典》 The farmers are scattering seed. 农夫们在播种。 来自《简明英汉词典》

67 milkiness
乳状； 乳白色； 浑浊； 软弱
参考例句：
Through calcareous milkiness liquid deposition, optimum reaction conditions were selected. 通过采用灰乳沉淀法，选取最佳反应条件。

68 outermost
adj.最外面的，远离中心的
参考例句：
He fired and hit the outermost ring of the target.他开枪射中了靶子的最外一环。 The outermost electron is shielded from the nucleus.原子核对最外层电子的作用受到屏蔽。

69 interfering
adj. 妨碍的 动词interfere的现在分词
参考例句：
He's an interfering old busybody! 他老爱管闲事！ I wish my mother would stop interfering and let me make my own decisions. 我希望我母亲不再干预，让我自己拿主意。

70 awed
adj.充满敬畏的，表示敬畏的v.使敬畏，使惊惧( awe的过去式和过去分词 )
参考例句：
The audience was awed into silence by her stunning performance. 观众席上鸦雀无声，人们对他出色的表演感到惊叹。 来自《简明英汉词典》 I was awed by the huge gorilla. 那只大猩猩使我惊惧。 来自《简明英汉词典》

71 momentary
adj.片刻的，瞬息的；短暂的
参考例句：
We are in momentary expectation of the arrival of you.我们无时无刻不在盼望你的到来。 I caught a momentary glimpse of them.我瞥了他们一眼。

72 translucence
n.半透明
参考例句：
Translucence gives the material the ability to transmit and diffuse light. 半透明给予材质以传送和散播光的能力。 Our factory's new products are a series of good quality plastic household utensils with spotless translucence. 洁白透明，质量上乘的家用塑料系列是本厂的新产品。

73 steadily
adv.稳定地；不变地；持续地
参考例句：
The scope of man's use of natural resources will steadily grow.人类利用自然资源的广度将日益扩大。 Our educational reform was steadily led onto the correct path.我们的教学改革慢慢上轨道了。

74 rifts
n.裂缝( rift的名词复数 )；裂隙；分裂；不和
参考例句：
After that, through the rifts in the inky clouds sparkled redder and yet more luminous particles. 然后在几条墨蓝色云霞的隙缝里闪出几个更红更亮的小片。 来自汉英文学 - 现代散文 The Destinies mend rifts in time as man etches fate. 当人类想要再次亵渎命运的时候，命运及时修正了这些裂痕。 来自互联网

75 streaking
n.裸奔（指在公共场所裸体飞跑）v.快速移动( streak的现在分词 )；使布满条纹
参考例句：
Their only thought was of the fiery harbingers of death streaking through the sky above them. 那个不断地在空中飞翔的死的恐怖把一切别的感觉都赶走了。 来自汉英文学 - 家（1-26） - 家（1-26） Streaking is one of the oldest tricks in the book. 裸奔是有书面记载的最古老的玩笑之一。 来自互联网

76 haze
n.霾，烟雾；懵懂，迷糊；vi.(over)变模糊
参考例句：
I couldn't see her through the haze of smoke.在烟雾弥漫中，我看不见她。 He often lives in a haze of whisky.他常常是在威士忌的懵懂醉意中度过的。

77 nucleus
n.核，核心，原子核
参考例句：
These young people formed the nucleus of the club.这些年轻人成了俱乐部的核心。 These councils would form the nucleus of a future regime.这些委员会将成为一个未来政权的核心。

78 blurs
n.模糊( blur的名词复数 )；模糊之物；（移动的）模糊形状；模糊的记忆v.（使）变模糊( blur的第三人称单数 )；（使）难以区分
参考例句：
The electron clouds are clearly visible as blurs surrounding the invisible nuclei. 电子云就象环绕着看不见的核的一片云雾。 来自辞典例句 The letter had many blots and blurs. 信上有许多墨水渍和污迹。 来自辞典例句

79 outfitted
v.装备，配置设备，供给服装( outfit的过去式和过去分词 )
参考例句：
They outfitted for the long journey. 他们为远途旅行准备装束。 来自《现代英汉综合大词典》 They outfitted him with artificial legs. 他们为他安了假腿。 来自辞典例句

80 spatial
adj.空间的，占据空间的
参考例句：
This part of brain judges the spatial relationship between objects.大脑的这部分判断物体间的空间关系。 They said that time is the feeling of spatial displacement.他们说时间是空间位移的感觉。

81 spectral
adj.幽灵的，鬼魂的
参考例句：
At times he seems rather ordinary.At other times ethereal,perhaps even spectral.有时他好像很正常，有时又难以捉摸，甚至像个幽灵。 She is compelling,spectral fascinating,an unforgettably unique performer.她极具吸引力，清幽如鬼魅，令人着迷，令人难忘，是个独具特色的演员。

82 colonization
殖民地的开拓，殖民，殖民地化； 移殖
参考例句：
Colonization took place during the Habsburg dynasty. 开拓殖民地在哈布斯堡王朝就进行过。 These countries took part in the colonization of Africa. 这些国家参与非洲殖民地的开发。

83 stiffened
加强的
参考例句：
He leaned towards her and she stiffened at this invasion of her personal space. 他向她俯过身去，这种侵犯她个人空间的举动让她绷紧了身子。 She stiffened with fear. 她吓呆了。

84 casually
adv.漠不关心地，无动于衷地，不负责任地
参考例句：
She remarked casually that she was changing her job.她当时漫不经心地说要换工作。 I casually mentioned that I might be interested in working abroad.我不经意地提到我可能会对出国工作感兴趣。

85 mule
n.骡子，杂种，执拗的人
参考例句：
A mule is a cross between a mare and a donkey.骡子是母马和公驴的杂交后代。 He is an old mule.他是个老顽固。

86 neatly
adv.整洁地，干净地，灵巧地，熟练地
参考例句：
Sailors know how to wind up a long rope neatly.水手们知道怎样把一条大绳利落地缠好。 The child's dress is neatly gathered at the neck.那孩子的衣服在领口处打着整齐的皱褶。

87 rimmed
adj.有边缘的，有框的v.沿…边缘滚动；给…镶边
参考例句：
Gold rimmed spectacles bit deep into the bridge of his nose. 金边眼镜深深嵌入他的鼻梁。 来自《简明英汉词典》 Trees rimmed the pool. 水池的四周树木环绕。 来自《简明英汉词典》

88 ripen
vt.使成熟；vi.成熟
参考例句：
I'm waiting for the apples to ripen.我正在等待苹果成熟。 You can ripen the tomatoes on a sunny windowsill.把西红柿放在有阳光的窗台上可以让它们成熟。

89 circumference
n.圆周，周长，圆周线
参考例句：
It's a mile round the circumference of the field.运动场周长一英里。 The diameter and the circumference of a circle correlate.圆的直径与圆周有相互关系。

90 rotational
adj.回转的，轮流的
参考例句：
A synchronous motor drives the measuring bob at a constant rotational speed.同步马达驱动测锤以恒速旋转。 With some limitations,this is true also of rotational degrees of freedom.在某些限定条件下，这一说法对转动自由度也成立。

91 tighten
v.(使)变紧；(使)绷紧
参考例句：
Turn the screw to the right to tighten it.向右转动螺钉把它拧紧。 Some countries tighten monetary policy to avoid inflation.一些国家实行紧缩银根的货币政策，以避免通货膨胀。

92 tightening
上紧，固定，紧密
参考例句：
Make sure the washer is firmly seated before tightening the pipe. 旋紧水管之前，检查一下洗衣机是否已牢牢地固定在底座上了。 It needs tightening up a little. 它还需要再收紧些。

93 mightily
ad.强烈地；非常地
参考例句：
He hit the peg mightily on the top with a mallet. 他用木槌猛敲木栓顶。 This seemed mightily to relieve him. 干完这件事后，他似乎轻松了许多。

94 starry
adj.星光照耀的, 闪亮的
参考例句：
He looked at the starry heavens.他瞧着布满星星的天空。 I like the starry winter sky.我喜欢这满天星斗的冬夜。

95 precisely
adv.恰好，正好，精确地，细致地
参考例句：
It's precisely that sort of slick sales-talk that I mistrust.我不相信的正是那种油腔滑调的推销宣传。 The man adjusted very precisely.那个人调得很准。

96 trajectory
n.弹道，轨道
参考例句：
It is not difficult to sketch the subsequent trajectory.很容易描绘出它们最终的轨迹。 The path followed by a projectile is called its trajectory.抛物体所循的路径称为它的轨道。