difficult后面加什么介词

　　例句：

　　It is difficult for young people to find jobs around here.

　　年轻人要在附近找到工作很难。

　　She made life very difficult for me.

　　她使我的生活变得很艰难。

　　It's difficult for me to be casual about anything.

　　要我轻松待事有难度。

　　Nothing is really difficult in the world as long as you work hard.

　　世上无难事，只要有心人。

　　In itself, it's not a difficult problem to solve.

　　这本身并不是个难解决的问题。