Protection tests
[医] 保护试验(检微生物及其毒力)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
Macro adjustment is needed in a market economy.
市场经济需要宠观调控。
A good horse often needs a good spur.
好马常要好靴刺。
But he wanted to see the old folk again and to visit my mother's grave.
但是，他想看一看家乡父老乡亲，为我的母亲扫墓。