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https://online2.tingclass.net/lesson/shi0529/0009/9884/81.mp3

https://image.tingclass.net/statics/js/2012

burst into tears 突然哭起来

burst into laughter 突然大笑

burst into song 突然唱起歌来

例句：

She burst into tears and ran from the kitchen.

她突然哭了起来，跑出了厨房。

Hearing the joke, we burst into laughter.

一听到这个笑话，我们都大笑起来。

Two boys burst into my room.

两个男孩突然闯进了我的房间。

末尾音乐：

big big world