短语动词
中文翻译：Unknown
同义词：
['slip up', 'make a mistake', 'get into trouble', 'mess up', 'falter']
例句：
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1. I fell a cropper when I tried to open the door without a key.
我尝试开门时出了差错。
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2.She fell a cropper when she forgot her phone at home and had to call for help.
她在家忘了带手机，不得不打电话求助。
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3. He fell a cropper when he tried to fix the car himself and ended up damaging it further.
他试图自己修理汽车，结果反而使车更糟了。