英语词汇“曾经”的读音、翻译、释义、用法及例句-啃外文网

词汇	曾经
释义	曾经曾经[céng jīng]副1.■（表示有过某些行为或情况） once:他曾经在上海住过。He once lived in Shanghai.她曾经参加过石油大会战。She has taken part in a major battle for oil.我以前曾经见到过他。I have seen him before.
随便看	double stripper double-stroke deep well pump double-strut trussed beam double-stud chaplet double subscript double suction double-suction pump double-suction share double sunk dial double-super effect double superheterodyne double super royal double surface transistor double swage hammer double sweep tee double swell hand double swing bridge double swing door doublet doublet aerial double take double talk double tangent doublet antenna double-tape-faced piston ring

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