英语词汇“know one's business”的读音、翻译、释义、用法及例句-智慧网

词汇	know one's business
释义	know one's businessknow one's business1.■精通业务Imes knows his business because he has been in this line for years.因为艾姆斯干这行多年, 所以他精通业务。
随便看	back up copy backup cycle back up data backup data set back-up disk backup diskette back-up drum backup file backup flange backup frequency backup fuse backup gap back-up heel back up in parsing Back-up Intercept Control backup item back-up item back-up lamp back-up light backup light backup line back up memory backup operation back up oscillator back-up overspeed governor

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