See also: 扣练齿轮

Chinese

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10 percent; button; detain
to practise; to train; to perfect (one's skill)
to practise; to train; to perfect (one's skill); to drill
 
gear; intimate friend; very close friend
trad. (扣練齒輪) 齒輪
simp. (扣练齿轮) 齿轮

Pronunciation

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Noun

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扣練齒輪

  1. sprocket