Ld-50
[医] 半数致死量
🧩 词语组成解析
致死剂量
fifty
🗣️ 情景例句
That sounds reasonable. Let me think it over. And I'll call you back to make reservations.
听起来价钱还算公道。让我考虑一下，我会再打电话预定。
The eyes of the nation are upon the government.
国民的目光都注视着政府。
The tree must be put in the hole now.
现在把树放入坑里。