你应该树立难以实现的目标。

You have to set the goals that are almost out of reach.

youdao

要改善孕产妇的健康是如此难以实现的目标，我们不能为此感到惊奇。

We should not be surprised that improved maternal health is such a difficult goal to reach.

youdao

使企业在一开始胆怯，胆怯，只有抓住眼前的经济利益，这是难以实现的目标不变。

Enable businesses to start on one timid, timid, only to seize the immediate economic benefits, it is difficult to achieve the vision steady.

youdao