Copolyether
共聚多醚
🗣️ 情景例句
Some feel that the media has too much power these days.
有人认为现在媒体的影响力太大了。
Tis a good horse that never stumbles.
好马不失蹄。
Please do. We 're desperate for the material.
麻烦你了，我们非常需要这些材料。