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
who spent the last five years
用过去五年的时间
A maiden with many wooers often chooses the worst.
少女有了许多求婚者往往选中了最差的一个。
He noticed that the straight part of the dance was different in the afternoon from what it had been in the morning.
他注意到下午舞蹈的直线部分与上午的不一样。