Reofos
合成磷酸酯类
🗣️ 情景例句
Now we'll find out about the surprise.
现在我们可以知道是什么样的惊喜了。
How long will you remain in the country?
你将会在乡间逗留多久？
I've been working so hard recently that I haven't had any time for collecting new stamps.
最近我的学习一直很紧张，没有时间收集新邮票。