Quanti-pirquet reaction
[医] 定量披尔奎氏反应(结核菌素定量皮上划痕法)
🧩 词语组成解析
🗣️ 情景例句
Hey, why don't we go out
嘿，我们何不出去
I started school at the age of 6.
我六岁开始上学。
The wooducutter was standing next to a fallen tree, with lots of small pieces of wood in front of him.
伐木工人正站在一棵倒下的树旁，他的前面有很多小片的木头。