laugh at|laughed at

如果我穿这套服装，大家都会嘲笑我。

Everyone will ___laugh ___at me if I wear this costume.

人们可能会因为你犯这样的错误而嘲笑你。

People might ___laugh ___at you for making such a mistake.

他的同学们嘲笑他奇怪的发型。

His classmates ___laughed ___at his strange haircut.