1
- give or cause to give a short, sudden jerking or convulsive movement抽动; 使抽动：
no obj. he saw her lips twitch and her eyelids flutter.他看见她嘴唇抽搐, 眼皮颤动
with obj. the dog twitched his ears.那狗抽动着耳朵。
1.1
- with obj. and adverbial cause to move in a specified direction by giving a sharp pull急抽, 急扯; 猛拉：
he twitched a cigarette out of a packet.
他从一包烟中抽出一支。
2
- with obj. use a twitch to subdue (a horse)扯绳勒（马）。
1
- a short, sudden jerking or convulsive movement抽动, 痉挛：
his mouth gave a slight twitch.
他的嘴巴微微抽动了一下。
1.1
- a sudden pull or jerk急扯, 猛拉：
he gave a twitch at his moustache.
他猛扯了一下胡子。
1.2
- a sudden sharp sensation: a pang抽痛, 刺痛：
he felt a twitch of annoyance.
他突然感到烦恼之痛。
2
- a stick with a small noose attached to one end. The noose may be twisted around the upper lip or the ear of a horse to subdue it, especially during veterinary procedures.马勒。
词源
Middle English: of Germanic origin: related to Old English twiccian 'to pluck, pull sharply'.