Hexoxide
六氧化物
🗣️ 情景例句
Oh. I'm sorry.
噢，对不起。
What did you do the week before last?
上上星期你干了什么？
I don't want to imply that every point in this contract is negotiable.
不用我说，该合同中的每一条都要严格执行的，没有讨价还价的余地。