Desulfate
脱硫
🗣️ 情景例句
How many courses are you taking this semester?
这学期你选了多少课？
Which one do you prefer?
你比较喜欢哪一个？
So far, they have been unlucky in their search for gold and have no money at all.
到那时为止，他们寻找金子一直碰不上好运，而且他们身上一点钱也没有了。