All the questions about her bangs made Lisa burst into laughter.

所有这些关于她刘海的问题都让Lisa捧腹大笑

Seeing the funny picture, the whole class burst into laughter.

看到这张有趣的照片，全班同学都突然大笑起来。

He burst into laughter, not hollow laughter now, but honest laughter.

他突然大笑起来，不是空洞的假笑，而是货真价实的笑声。

When I told the joke everyone burst into laughter.

当我说这笑话时每个人都忍不住大笑起来。

The audience burst into laughter because of the slip of the tongue from the host.

由于主持人的口误，观众哄堂大笑。

"Haha point" refers to the threshold where you can be amused and burst into laughter.

“哈哈点”指的是你能被逗乐并放声大笑的临界点。