Laurusan
脱氢间型霉素
🗣️ 情景例句
You're still thinking about something to do, aren't you?
你还在想要找点事做， 是吗？
I'm afraid I don't know. Let me ask the supervisor in this section.
恐怕我不知道，让我来询问一下该组的负责人。
This one is 3 yuan. That's dear.
这支笔三块钱，太贵了。