Polyethylenes
(polyethylene 的复数) n. 聚乙烯\\n[化] 聚乙烯
🗣️ 情景例句
We enjoyed our trip to Europe.
这次到欧洲旅行，我们非常愉快。
Here is a copy of itinerary we have worked out for you and your friends.Would you please have a look at it?
这是我们为你和你的朋友拟定的活动日程安排。请过目一下，好吗？
Be careful! Don't throw your cigarette out of the window. If you do that, you may start a fire. Put it out in the ashtray.
当心！别把香烟丢到窗外。要是你那样做，会引起火灾的。把它熄灭在烟缸里。