这个句子是什么结够?里面的to that of 是什么词性?把to还有of去掉行不行?这个句子是什么结够?里面的to that of 是什么词性?麻烦从语法方面讲一下!谢谢!The school's approach must be complementary to that of the parents
不省略的说法是, the school's approach must be complementary to the approach of the parents'.
后面相同内容会用 that (those复数)代替
比较句会用的多。 apples from this farm are sweeter than those from others.
the window of the bedroom is much bigger than that of the kitchen.