拼音：bù chéng qì
注音：ㄅㄨˋㄔㄥˊㄑㄧˋ
解释：器：指人的度量、才干。不能成为有用的器物。多用以指人气质平庸，不能有所成就，没有什么出息。有时也指不学好，自甘堕落。
出处：《礼记·学记》：“玉不琢，不成器。”
英语：neer-do-well
Instrument: refers to people's measurement and ability. Can't be a useful object. It is often used to refer to people with mediocre temperament, can't achieve anything and have little promise. Sometimes it also means not learning well and being willing to degenerate.
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