我碰蚯蚓的时候，它扭动起来。

The earthworm wriggled when I touched it.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
=2 碰 pèng variant of 碰 pèng
=2 碰 pèng
  1. to touch
  2. to meet with
  3. to bump
=2 碰 pèng old variant of 碰 pèng
3 蚯蚓 qiūyǐn (zoology) earthworm
=4 的 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. dì or di in poetry and songs
=4 的 dī a taxi; a cab (abbr. for 的士 dīshì)
=4 的 dí really and truly
=4 的 dì (bound form) bull's-eye; target
5 时候 shíhou
  1. time
  2. length of time
  3. moment
  4. period
=6 它 tā it
=6 它 tā it (pronoun for an animal)
=6 它 tuō
  1. alternative form of 駝 /驼 (tuó)
  2. used in 它它藉藉／它它借借
=6 它 yí only used in 它它
7 扭动 niǔdòng to wriggle; to wiggle; to sway
=8 起来 qǐlai
  1. to stand up; to get up
  2. also pr. qǐlái
=8 起来 qilai
  1. (after a verb) indicating the beginning and continuation of an action or a state
  2. indicating an upward movement (e.g. after 站 zhàn)
  3. indicating completion
  4. (after a perception verb, e.g. 看 kàn) expressing preliminary judgment
  5. also pr. qǐlai
=8 起来 qǐlái
  1. placed after a verb to form a copular verb, expressing evaluation based on initial perception
  2. placed after a verb to indicate that the action has started
  3. to get up; to get out of bed
  4. to rise up; to get up