Polyisoprene
n. [化]聚异戊二烯
🗣️ 情景例句
Alright. Please sit down.
好的，请坐下。
I met one of the announcers over at the television station.
我在电视公司遇到一位播音员。
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.
是的，我看见了。他们怎么能这样排放废水呢？海水的颜色多么可怕呀！看来我们班同学根本不能在这里游泳。