Polymine
聚乙烯亚胺; 聚乙烯亚胺
🗣️ 情景例句
Let's go for lunch. I'm buying.
去吃午饭吧， 我请客。
He who makes constant complaint gets little compassion.
经常诉苦抱怨，难以博得同情。
A friendly waiter taught me a few words of Italian.
一位好客的服务员教了我几句意大利语，