竅〔窍〕 hiu3 {qiào}- hole
- opening
- orifice (of the human body)
- (fig.) key (to the solution of a problem)
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竅門〔窍门〕 hiu3 mun4 {qiào mén}- a trick
- an ingenious method
- know-how
- the knack (of doing sth)
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竅門兒〔窍门儿〕 hiu3 mun4 ji4 {qiào mén r}- a trick
- an ingenious method
- know-how
- the knack (of doing sth)
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