Serotyping
[医]血清分型
🗣️ 情景例句
Hello, Air China Flight Reservations. May I help you?
喂，你好，中国航空公司订票处，需要帮忙吗？
I'll be ready in a few minutes.
再过几分钟就好了。
I think I'm in a difficult position.
我想我现在的处境困难。