THE MOCKING-BIRD'S NEST.

 Whate'er birds did or dreamed, this bird could say.

Then down he shot, bounced airily along

The sward, twitched¹ in a grasshopper², made song

Midflight, perched, prinked, and to his art again.

Sweet Science, this large riddle³ read me plain:

How may the death of that dull insect be

The life of yon trim Shakespeare, on the tree?

Sidney Lanier.

1 twitched   

vt.& vi.（使）抽动，（使）颤动（twitch的过去式与过去分词形式）

参考例句：

• Her lips twitched with amusement. 她忍俊不禁地颤动着嘴唇。
• The child's mouth twitched as if she were about to cry. 这小孩的嘴抽动着，像是要哭。 来自《简明英汉词典》

2 grasshopper   

n.蚱蜢，蝗虫，蚂蚱

参考例句：

• He thought he had made an end of the little grasshopper.他以为把那个小蚱蜢干掉了。
• The grasshopper could not find anything to eat.蚱蜢找不到任何吃的东西。

3 riddle   

n.谜，谜语，粗筛；vt.解谜，给…出谜，筛，检查，鉴定，非难，充满于；vi.出谜

参考例句：

• The riddle couldn't be solved by the child.这个谜语孩子猜不出来。
• Her disappearance is a complete riddle.她的失踪完全是一个谜。