Seroepidemiology
n. [医]血清流行病学
🗣️ 情景例句
You passed your test? Fantastic!
你测验及格了？太棒了！
The frog is frightened at the sight of a snake.
那只青蛙因为看到了蛇而战抖。
A week? As long as that?
一星期？要那么长时间？