a wise guy

a wise guy a wise man 和 a wise guy 有什么区别啊? 经常听到“don't be a wise guy”,怎么翻译比较好? a stupidly good guy Are u a guy? a wise bird的意思 ----Robert is a wise man. guy A Guy Like You 歌词 i am a party guy He is a label guy. YOU MEET A GOOD GUY