Pmcd
[医][=preventive medicine detachment]预防医学分队
🗣️ 情景例句
You look very young. How old are you?
你看起来真年轻， 你多大了？
Every bean has its black.
人人有其缺点。
The life forms most likely to develop on a planet would be bacteria.
行星上最容易生存下来的是细菌。