Polyvinylamine
聚乙烯胺; 聚乙烯胺
🗣️ 情景例句
She owes her good health to her regular life.
她把健康归功于规律的生活。
Just tell it like it is.
你就直话直说吧！
Boxing matches were very popular in England two hundred years ago.
两百年前，拳击比赛在英国非常盛行。