Book III.

In my two precedent¹ treatises² having in due order taken a compendious³ view and given an account of the celestial⁴ bodies, and of the moon which stands between them and the terrestrial, I must now convert my pen to discourse⁵ in this third book of Meteors, which are beings above the earth and below the moon, and are extended to the site and situation of the earth, which is supposed to be the centre of the sphere of this world; and from thence will I take my beginning.

1 precedent   

n.先例，前例；惯例；adj.在前的，在先的

参考例句：

• Is there a precedent for what you want me to do?你要我做的事有前例可援吗？
• This is a wonderful achievement without precedent in Chinese history.这是中国历史上亘古未有的奇绩。

2 treatises   

n.专题著作，专题论文，专著( treatise的名词复数 )

参考例句：

• Many treatises in different languages have been published on pigeons. 关于鸽类的著作，用各种文字写的很多。 来自辞典例句
• Many other treatises incorporated the new rigor. 许多其它的专题论文体现了新的严密性。 来自辞典例句

3 compendious   

adj.简要的，精简的

参考例句：

• At the end,a compendious sum-up and an expectation were brought out.最后对全文进行了扼要的总结，并提出展望。
• He made compendious introduction to the aluminum foil industry of Germany and France.他对德国与法国的铝箔工业作了扼要的介绍。

4 celestial   

adj.天体的；天上的

参考例句：

• The rosy light yet beamed like a celestial dawn.玫瑰色的红光依然象天上的朝霞一样绚丽。
• Gravity governs the motions of celestial bodies.万有引力控制着天体的运动。

5 discourse   

n.论文，演说；谈话；话语；vi.讲述，著述

参考例句：

• We'll discourse on the subject tonight.我们今晚要谈论这个问题。
• He fell into discourse with the customers who were drinking at the counter.他和站在柜台旁的酒客谈了起来。