Perhalide
全卤化物
🗣️ 情景例句
Excuse me. you got a minute?
对不起，能耽误你一分钟吗？
First of all, I will outline the characteristics of our product.
首先我将简略说明我们商品的特性。
Computers have become smaller and smaller, more and more powerful and cheaper and cheaper.
计算机已经变得体积越来越小，功能越来越多，价格越来越低，