Copolyether
共聚多醚
🗣️ 情景例句
How you all doing ?
你们大家怎么样？
I'm going to buy six inches.
我要买六英寸。
There is no social problem it is more incumbent upon us to understand than this of the role of custom.
而没有任何一个社会问题比得上风俗的作用问题更要求我们对它理解。