Alloprene
氯化橡胶
🗣️ 情景例句
Yes, let me try. Oh, it's difficult. Will you show me how to do it?
好吧，让我试试吧！哦，真不容易。能教我怎么用吗？
In Britain, there are open universities.
在英国，有成人大学。
What did your boss say to him?
你老板是怎么对他说的？