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	police inspector police magistrate policemagisttrate policeman police matron policemen police offense policeoffice police office police officer police patrol police post police reporter police sergeant police stand police state policestate police station police substation police wagon policewoman policier policies issued basis policies of science and technology policis muscles

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