Polyisoprenes
(polyisoprene 的复数) n.[化]聚异戊二烯
🗣️ 情景例句
Is there anyone present who can show
在座可有人能提出
I can't tell you how happy this makes me.
我形容不出来我有多高兴。
I don't think so. Here you are. Catch!
我觉得没有。给你，接住！