Set goals for them that are hard, but can be achieved.

虽然为他们设立目标是很难的，但是也是可以完成的。

youdao

I think it's hard for a rookie to skim and decide which cases are relevant and which can be set aside.

我认为，对一个新手而言，略读并确定哪一个案例是与之相关的、哪一个案例是可以搁置不看的，是一件很难的事情。

youdao

Imagine how hard it could be just to set up a project with the right classpath.

想象一下，仅仅是给项目设置正确的类路径就会非常困难。

youdao

And he offers this advice once you have chosen the record you want to set: Train hard.Plan ahead.Be patient -- don't give up.

VOA: special.2011.05.16

It is going to be extremely hard to set yourself apart, if these are the qualities on which you choose to compete.

FORBES: Move up http://i.forbesimg.com t Move down

For resistance training, the last few repetitions of each set need to be hard.

CNN: Best way to jump-start your metabolism after a plateau?

Business leaders are supposed to be tough, hard-driving visionaries who set a firm course for the company and then lead people in that direction with their charisma and force of personality, right?

FORBES: Do you get me?