英語翻譯：

【醫(yī)】 allus pollex; first finger; pollex; thumb

例句：

1. 踢進了那個球著實讓他高興，你看他的教練伸頭大拇指在鼓勵他呢！
   He's absolutely delighted to have scored that goal! See his coach give him the thumbs up!
2. 經常吮吸拇指能使牙齒向外突出。
   Thumb-sucking can cause protrusion of the teeth.
3. 我坐著無聊地旋弄拇指，等候他用完電話。
   I sat twiddling my thumbs waiting for him to finish using the phone.
4. 他的拇指讓門夾了。
   He caught his thumb in the door.