Pholocatalyst
[医] 光催化剂
🗣️ 情景例句
Right. What's old?
对了， 旧的东西是什么？
I'm going to the bookstore. Will you go with me?
我要去书店，你和我去吗？
OK. Let's buy some more this afternoon.
好吧，我们下午再多买点。