for
1.就……而言,表示对比.
It's cold for recent year this year.
就近几年说,今年很冷.这是一种对比.
It's important for me to study hard.
对我而言,学习努力很重要.
2.为了某人
make sth.for sb.
为某人制作某物
buy sth.for sb.
为某人买某物
to
以……看来
侧重于主观看法
如：My father has bought me a book,which I think is very helpful to me.
我爸爸为我买了一本书,我认为他对我的帮助很大.
表示 以我看来,加强了I think 所表达的主观性