mirth

n. 欢乐,欢笑

Christmas is a time of mirth, especially for children.

圣诞节是个快乐的日子，尤其是对孩子们。

When I told them what had happened to me, they all chortled with mirth.

我把我的事告诉他们以後, 他们咯咯地笑起来了.