Lose ones head

be tactful. Don’t lose your head.

如果你向老板抱怨的话，要圆滑点。别失去理智了。

表现失常

The baseball team lost the game because the pitcher lost his head and played badly.

这只棒球队因为投手表现失常、失误连连，因而输了这场比赛。

失去理智

My cousin lost her head while shopping and bought lots of unnecessary things.

我表姐购物的时候失去理智，买了一大堆不必要的东西。

短词短句：Lose ones head