Polyaddition
加(成)聚(合)作用
🔁 扩展释义
【化】 聚加成反应; 逐步加成聚合
🗣️ 情景例句
We started by making safety equipment for many sports.
我们是以做运动产品的安全器材起家的。
And do you have friends there?
你在那儿有朋友吗？
But it's great! We're together most of the time.
但是好极了！大多数时间我们在一起。