Polyolefin
n. [化]聚烯烃
🗣️ 情景例句
Have you got time this morning
今天上午你有时间
Call me tomorrow if you don't feel better.
明天如果没有好转，就打电话给我。
They were also quite sure that a cigarette end did not start the fire.
他们还十分肯定火灾也不是由烟头引起的。