Ld
致死剂量
🗣️ 情景例句
I went into business for myself
我当初自己开业
I remember the girl whose father earns $ 300 a day.
我记得那个女孩的父亲一天赚三百元。
No. I've never been to that farm before. What kinds of animals have they got?
不，我以前从来没有去过那个农场。他们有哪些种类的动物？