1 to produce liquid through your skin because you are hot, ill or afraid 流汗；发汗；出汗

2 sweat (over sth) to work hard 努力做（某事）: I've been sweating over that problem all day. 我整天为了那个问题伤脑筋。 sweat noun [C,U] He stopped digging and wiped the sweat from his forehead. 他停止挖掘，抹掉额头上的汗水。He woke up in a sweat. 他一觉醒来，满身是汗。 ☞Look at perspiration. 参看perspiration。