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vi. 【生物学、医学】血清转化, 对疫苗产生抗体
🗣️ 情景例句
Who's buying the drinks?
谁来买酒？
Do you want to remit the money by air mail or by cable, sir?
您想要航空信还是电汇，先生？
It can be unpleasant to live even several miles from an aerodrome;
即使住在离机场几英里以外的地方，机场的噪音也会使人难受。