Serosurvey
[医]血清学调查
🗣️ 情景例句
Good Gemma.
乖Gemma。
But We tried very hard to adapt ourselves to the new environment.
但是我们尽量去适应新的环境。
But he has not promised to give you any of his blood.
但是他并没有答应给你他身上的任何一滴血。