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	feed dial feed disc feed disk feed dispenser feed distributing plate feed distribution pump feed distribution system feed distributor feed ditch feed dog feed door feed drive gearing feed drum feed efficiency feed elevator feed end feed-end refuse discharge feed engagement feeder feeder airline feeder antenna filicite filicoid Filicopsida Filicornia

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