to与for区别:The book is difficult to me.The book is difficult f

to与for区别:The book is difficult to me.The book is difficult f The book is difficult for you to understand.不定式表主动/被动? The problem is difficult for me to work out. It is difficult for me to choose the right hairstyle The question is too difficult for me to answer.同 It is not difficult for me to climb the mountain. ----a lot of new words in it .the book is difficult for me t 1,----a lot of new words in it .the book is difficult for me ______ is Old English,the book is too difficult to understan The book is difficult to understand 的to做什么成分 改错(对的不动,错的指出并改正）：1.This book is too difficult for the boy to The book is()more difficult than the one I recommended to yo