Polyethylenes
(polyethylene 的复数) n. 聚乙烯\\n[化] 聚乙烯
🗣️ 情景例句
Just relax.
不用紧张。
Hope is but the dream of those that wake.
希望是清醒者的梦想。
The only way to do this was to operate.
搞清的唯一办法就是手术。