Poly(ether-ketone)
[化] 聚醚酮
🗣️ 情景例句
My boyfriend just broke up with me.
我的男朋友和我分手了。
He skinned his knee.
他擦破了膝盖的皮。
Excuse me.Where's the nearest post office, please?
请问。最近的邮局在哪里？