空中
1.As we all know, there is only one sky for all of us. But in our text, the author writes, "The skyscrapers seem to be scraping the skies. " So, my question is: Why does the author use the word "skies" instead of "sky"?
我们都知道.我们只有一个天空.但是在课文中.作者写道:"摩天大楼高耸空中."那么我的问题是:为什么作者用"skies"而不用"sky".
