Seroprevention
[医] 血清预防法
🗣️ 情景例句
Fair enough.
很公平。
Is marriage finding someone to share life with?
结婚可是在寻觅共同度过人生的人？
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，