孩子们在看那场滑稽的木偶戏时，咯咯地笑个不停。

The children ___giggle uncontrollably during the silly puppet show.

当他试图解释那个尴尬的情况时，忍不住紧张地咯咯笑了起来。

He couldn't help but ___giggle nervously as he tried to explain the awkward situation.

听到那个荒谬的建议，她嘴角漏出一声轻笑，然后才镇定下来。

Upon hearing the absurd suggestion, a faint ___giggle escaped her lips before she composed herself.