play dirty to behave in a very unfair and dishonest way, especially in a competition or game耍花招，使用卑鄙手段〔尤在比赛或游戏时〕:•a team that plays dirty比赛不老实的球队 play dirty informal act in a dishonest or unfair way 〈非正式〉做事不诚实（或不公平）。 play ˈdirty(informal)to behave or play a game in an unfair way干卑鄙勾当；（比赛）犯规 |