Polydivinylbenzene
聚二乙烯基苯
🗣️ 情景例句
Is Robbie Stewart there?
Robbie Stewart在吗？
I go downstairs and have my breakfast.
我下楼吃早饭。
This may be illustrated by comparing the position of a nation with that of a private business enterprise.
把国家的状况同私人企业的状况加以比较，就可以看清这个问题。