Poly(ether-ketone)
[化] 聚醚酮
🗣️ 情景例句
I can believe that. One good thing about ping pong is that it doesn't need much space.
我几乎不敢相信。乒乓球最大的好处是不占地方。
What shall I send him for his the New Year?
我要送他什么东西作为新年礼物？
Ok. We can stop here for a time.
“那好吧！我们可以在这里停一下。”