Polydiolefin
聚二烯烃
🗣️ 情景例句
Right. What's old?
对了， 旧的东西是什么？
I'm combing my hair in the bathroom.
我在浴室梳头。
There is nothing secretive about the Ombudsman's work for his correspondence is open to public inspection.
司法特派员的工作没有什么秘密可言，他的信件是公开的，供公众监督。