chin基本解释
n,下巴；聊天；引体向上动作,同近
He rubbed his chin thoughtfully..他若有所思地抚摸着下巴。
下巴；聊天；引体向上动作英释nnthe front part of your face below your mouth
chin oneself,(在单杠上)做引体向上动作.短语
