Cotamer
八聚物
🗣️ 情景例句
we are.
是的。
It's impossible. You may notice that the cost of raw materials has gone up in recent years.
不可能，您可能注意到了近年来原材料的价格上涨了。
An important film director saw Chaplin acting a very funny part in a play.
一位颇有影响的电影导演看了卓别林在一个剧中扮演的一个非常滑稽的角色。