Polythiourea
聚硫脲
🗣️ 情景例句
He is an orphan, so he is not sure which family name he should have.
他是个孤儿，因而不知道他自己姓什么。
He who does not honour his wife,dishonours himself.
不尊重自己妻子的人，自己也不会受人尊重。
Yes.
是的。