短语
中文翻译：惹是生非
同义词：
['play pranks', 'cause trouble', 'stir up trouble']
例句：
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1. She's up to mischief again, just like her old ways.
她又在捣乱，就像她以前那样。
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2. The kids are up to mischief in the park, causing a lotof noise.
孩子们在公园里捣乱，制造了很多噪音。
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3. He was up tomischief when he saw the policeapproaching.
他看到警察靠近时正在捣乱。