tbe difficult o与be difficult for的区别

have difficult with 与have difficult in 的区别 difficult与different的区别,用法 说出tough与difficult的区别 是be difficult to sb 还是be difficult for sb? to与for区别:The book is difficult to me.The book is difficult f be difficult prove difficult 和 prove to be difficult 有什么区别? 主语think it difficult to与think it's difficult to的区别 hard 和 difficult的区别 hard、difficult的区别、用法 different、difficult的区别、用法 hard 和difficult的区别