Anthrindan
[化] 环戊烷并蒽
🗣️ 情景例句
How long is this flight?
这趟飞行有多长时间？
I'm afraid not. She doesn't have any openings in the morning.
恐怕不行。上午她没有空。
We should be able to get that off to you right away.
这样的话，我们马上就可以出货