at home with something 基本例句 熟悉;精通 I needed some orientation at this stage.我在这个阶段需要熟悉情况。 I am not familiar with chemical terms.我不熟悉化学术语。 The Canadian-Japanese is at home in both languages.那个加拿大籍日本人两种语言都精通。 He has Sanskrit at the tips of his fingers.他精通梵文。