Then Burst Into Laughter的意思|示意

I was numbed by her words for a while, and then burst into laughter, "My husband is a bit rigid, so do you think his proposal would be romantic?"

我被她问愣了一会儿，然后爆出大笑，“我丈夫有点儿死板，你想他的求婚会浪漫吗？”

Maria looked at the picture, and then to my surprise she burst into shouts of laughter.

玛丽亚看那张画，接着让我吃惊的是，她突然哈哈大笑。

Mother burst into laughter, and then into tears.

母亲突然笑了，然后又哭了起来。

If they burst into laughter, and then what happens?

如果他们哄堂大笑，接下来又会发生什么事？