I was so nervous I got the giggles.

我紧张得咯咯笑个不止。

I get the giggles when I'm nervous.

我紧张时就不停地咯咯大笑。

Matt collapsed into giggles and hung up the phone.

马特突然咯咯笑起来，然后挂断了电话。

She had a fit of the giggles and had to leave the room.

她突然咯咯笑了起来，不得不走出房间。

When the teacher looked up, the children dissolved into giggles.

教师抬头看时，孩子们不禁格格笑起来。