Polyethylenes
(polyethylene 的复数) n. 聚乙烯\\n[化] 聚乙烯
🗣️ 情景例句
You are coming along well.
你进展得很好。
A full belly counsels well.
衣食足而后知荣辱。
How peaceful and beautiful the country is!
多么平静美丽的国家呀！