The schoolwork may become more difficult and require greater skills.

学校的功课可能会变得更难，对技能的要求更高。

youdao

That such mobility has become more difficult in San Jose raises questions about the endurance of that foundational belief.

在圣何塞，这样的阶层流动更加困难，这引发了人们对这种阶层流动基本信念持久性的质疑。

youdao

Things are about to become more difficult.

事情变得越来越艰难。

youdao

Unless carbon emissions are brought under control,he says, the challenge of adapting to global climate change will become ever more difficult.

VOA: standard.2010.06.14

And the logistics of creating a contiguous and functioning Palestinian state become more difficult with settlements.

WHITEHOUSE: President Obama Holds a Press Conference with King Abdullah II of Jordan | The White House

One reason people expect to work longer is because saving for retirement has become more difficult.

FORBES: 70 is the New 65

But as more states join the tax-the-web movement, such responses could become more difficult.

FORBES: Connect