twitch /twitʃ/ I. n. ［c］（肌肉的）抽搐；刺痛：His mouth gave a slight twitch. 他的嘴巴微微抽动了一下。He felt a twitch of annoyance.他突然感到烦恼之痛。‖II. vt. & vi.抽搐；（突然）拉动；急扯：The child's mouth twitched as if she were about to cry. 这小孩的嘴抽动着，像是要哭。The dog twitched his ears.那狗抽动着耳朵。