Olefinicpolymerization
[化] 烯烃聚合
🗣️ 情景例句
She was in our class.
她和我们同班。
Justice has long arms.
天网恢恢，疏而不漏。
Sam Benton, the local butcher, had lost his wallet while taking his savings to the post office.
本顿在把存款送往邮局的途中把钱包丢了。