3 sentences

1. 我碰蚯蚓的时候，它扭动起来。

   wǒ pèng qiū​yǐn de shí​hou, tā niǔ​dòng qǐ lai.

   The earthworm wriggled when I touched it.

   Source: Tatoeba

2. 雨后我们在地上能看到蚯蚓。

   yǔ hòu wǒ​men zài dì​shang néng kàn dào qiū​yǐn.

   We can see earthworms on the ground after rain.

   Source: UM-Corpus: Spoken

3. 蚯蚓为什么要在大雨过后爬到地表？

   qiū​yǐn wèi​shén​me yào zài dà​yǔ guò​hòu pá dào dì​biǎo?

   Why do earthworms come up to the surface after the rain?

   Source: CCMatrix