jackasses

Don't be such a jackass; read the instructions before you start.

别当那样的傻瓜；开始前先读一下说明书。

After he lost the game, his friends called him a jackass for throwing his racket.

他输了比赛后，因为扔球拍，朋友们都叫他傻瓜。

He felt like a jackass when he realized he had been arguing with the wrong person.

当他意识到自己一直在和错误的人争吵时，他觉得自己像个傻瓜。