Catenane
n. [化]索烃
🗣️ 情景例句
Now I want to ask you a few questions, if you don't mind.
如果不介意的话，现在我想问你几个问题。
I said, Do you need any help?
我是说:你需要帮忙吗？"
The question was, which one?
问题是，哪一种气体导致火灾呢？