Polypropene
n. 聚丙烯
🗣️ 情景例句
We have a live-in doctor if there's a problem I can't handle.
假如我遇到不能解决的问题 ，我们还有位驻家医生。
That's very nice of you. I guess I could use some help.
谢谢你的好意。我想我可能要一点帮助。
Yes, it is. Hi, Jim!
是的，我是。你好，吉姆！