Polyoxyethylation
聚氧乙烯化作用, 环氧乙烷加成作用
🗣️ 情景例句
There's another advanced class today at four o'clock.
今天下午四点钟还有一次高级班。
As you all know, doing business is not an easy thing to do.
大家都知道，做生意并不是一件容易的事。
The only funny things we heard that evening came from the advertiser at the beginning of the programme.
那天晚上唯一有趣的事情是节目开始时那个报幕员的开场白。