Serotyping
[医]血清分型
🗣️ 情景例句
Then you're not upset
那么 ，你没有感到不快
I asked him to do it for me, but he wouldn't.
我请他帮我做，但是他不肯。
The first essential in elephant training is to assign to the animal a single mahout who will be entirely responsible for the job.
驯象中至关重要的是指派一名专门的驯象员，全面负责这项工作。