n.拇指
v.翻阅;示意要求搭车
Don't suck your thumb; it's so dirty. 别舔手指头,太脏了。
He caught his thumb in the door. 他的拇指让门夹了。
用作动词 (v.)He thumbed through the address book looking for the number. 他翻阅地址簿,寻找号码。
They managed to thumb a lift to Paris. 她们设法搭便车到达巴黎。
If we miss the last train we can always thumb a lift home. 如果我们赶不上末班火车,我们总可搭便车回家。