Polymine
聚乙烯亚胺; 聚乙烯亚胺
🗣️ 情景例句
Are you going to return it here?
你要在这里归还吗？
Don't be afraid he will get there on time.
不要怕他会准时到那里。
Zhang Jun did best of all.
张军在三人中跳得最高。