bān mén nòng fǔ
- teach one's granny how to suck eggs
- display one's slight skill before an ecpert
- show one's slight skill before an expert
- offer to teach fish to swim
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CODIC,
codices,
codicil,
codicillary,
codicology,
codifferential,
codification,
codifier,
codify,
CODIL,
相似单词
班鸠,
班轮,
班轮条件,
班轮运输,
班蝥,
班门弄斧,
班尼路,
班尼特,
班期,
班师,