Polypropene
n. 聚丙烯
🗣️ 情景例句
When my grandpa is in a bad mood, he's grouchy with everyone.
爷爷脾气坏的时候，对所有的人都不满意。
Money doesn't grow on trees.
钱不是从天上掉下来的。
It weighed nearly 500 pounds.
重达500磅左右。