动词短语
中文翻译：笑个不停
同义词：
['laugh heartily', "laugh uncontrollably例句：1. They were so happy that they couldn't help but fall about laughing.（他们太高兴了，忍不住一直大笑。）2. After the presentation", 'everyone fell about laughing at the joke.（演讲结束后，每个人都因为那个笑话而大笑起来。）']
例句：
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1. They were so happy that they couldn't help but fall about laughing.
他们太高兴了，忍不住一直大笑。
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2. After the presentation, everyone fell about laughing at the joke.
演讲结束后，每个人都因为那个笑话而大笑起来。
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3.The children fell about laughing as they played with their toys.
孩子们玩玩具时，不停地大笑。