I can't help laughing when I watch them!

看到他们的时候我就忍不住发笑！

He can't help laughing out loud at the joke.

听到这个笑话，他情不自禁地大笑起来。

Seeing his funny face, I cannot help laughing.

看到他滑稽的样子，我不禁笑了。

His story was so interesting that everyone cannot help laughing.

他讲的故事太有趣了，大家不禁都笑了。

I can't help laughing when I think about what happened to you both!

想到你们俩的遭遇我就忍不住笑！

I can't help laughing loudly.

我不禁大笑起来。

We couldn't help laughing at the joke.

听了那个笑话，我们禁不住大笑起来。

On hearing the joke we couldn't help laughing.

一听到这笑话我们不禁笑了起来。

He tried to stay his joy, but couldn't help laughing.

他试图掩盖住他的喜悦，可还是忍不住笑了起来。

People cannot help laughing at the mention of Chaplin's films.

一提到卓别林的影片，人们不禁要笑。