She burst into laughing at the wrong time.
她不合时宜地突然笑了起来。
When the video showed somebody got hurt, most of the students burst into laughing.
当看到视频上有人受到伤害的时候，教室里哄堂大笑。
As he walked into the classroom with that funny looking hat, everyone burst out laughing.
他戴着那顶滑稽的帽子走进教室，所有的人看见了都捧腹大笑。
As he walked into the classroom with that funny looking hat, everyone burst out laughing.
他戴着那顶滑稽的帽子走进教室，所有的人看见了都捧腹大笑。
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