短语
中文翻译：不熟练
同义词：
['be out of practice', 'be rusty']
例句：
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1.I've been out of practice for a while, so I need to brush up on my skills.
我有些日子没练了，所以需要复习一下我的技能。
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2.The old piano is out of practice, and it won't play well.
旧钢琴不常弹了，不好弹。
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3.After years of not practicing, she felt out of practice when she tried to play the violin.
经过多年的不练习，她尝试拉小提琴时感到生疏。