Polyolefin
n. [化]聚烯烃
🗣️ 情景例句
I can't.
我不敢读。
The surest way to be happy is to be busy.
要快乐，最可靠的办法是忙碌。
If anyone ever asks her how old she is, she always answers, 'Darling, it must be terrible to be grown up!'
“亲爱的，长成大人真可怕啊！”