giggling

v.咯咯地笑

n.咯咯笑；趣事

Stop giggling, children; this is a serious matter. 孩子们，别傻笑了，这是严肃的事情。

The children couldn't stop giggling at the teacher's high-pitched voice. 教师的嗓音很高，孩子们都不禁咯咯地笑起来。

There was a giggle from the back of the class. 从教室后面传来咯咯的笑声。

What a giggle! 多有意思的玩意儿！

Today's lesson was a bit of a giggle. 今天的课真有趣。