她忍不住爆发出笑声。

She couldn't help but burst into laughter.

孩子们在外面玩耍时散发出笑声。

The sound of laughter emanate from the children playing outside.

在喜剧表演中，他忍不住发出笑声。

He couldn't hold back his laughter during the comedy show.

孩子们对小丑的滑稽动作发出笑声。

Children were hooting with laughter at the clown's antics.

在那部搞笑电影中，她忍不住发出笑声。

She couldn't hold back her laughs during the funny movie.

在喜剧演员的笑话之后，房间里爆发出笑声。

Laughter erupted in the room after the comedian's joke.

每当看到他最喜欢的玩具，宝宝就会发出笑声。

The baby laughs whenever he sees his favorite toy.

卷起你的嘴唇并且发出笑声。

Start by curling the sides of your lips up and then follow with a few giggles.

这位曾使全世界的人们发出笑声的人自己却饱受辛酸。

Bitterness fed on the man who had made the world laugh.

婴儿在很小的时候就会笑，通常在他们会说话之前就学会了笑。不仅如此，天生失明和失聪的人还能发出笑声。

Infants laugh very early in life usually learning how to laugh before they can speak. Not only that but people that are born blind and deaf can still exhibit laughter.