Ld
致死剂量
🗣️ 情景例句
In my opinion, winter in Beijing is not very cold.
我觉得北京的冬天不是特别冷。
One has lived too near a wood to be frightened by owls.
深知底蕴，不以为怪。
“I wish I'd known about that rule earlier, she said.
“我要是早点知道这个规矩就好了！”她说。