T1d50
[医] 半数组织感染量
🗣️ 情景例句
I'm as strong as an ox.
我像牛一样壮。
It is up to you to carry out the plan.
由你实行那个计划。
Our next obstacle was a shallow pool of water about half a mile across.
下一个障碍是一片约半英里宽的浅水塘。