Polyethylenes
(polyethylene 的复数) n. 聚乙烯\\n[化] 聚乙烯
🗣️ 情景例句
Helen has told me all about you.
海伦对我将了好多你的事儿。
Please show us the shipping costs for several possible carries.
请告诉我们几种可能的运输方式的价格。
First it made a circle to the right, then to the left.
令他吃惊的是，蜜蜂开始在蜂窝的表面表演一种舞蹈。