Yuan solved the food problem in China.

袁隆平先生解决了中国的粮食问题。

youdao

Food was a big problem in China in the past.

在过去，粮食是中国的一个大问题。

youdao

As we all know, food waste becomes a serious problem in China.

众所周知，在中国，食物浪费成为了一个严重的问题。

youdao

But the biggest problem was the civil war in China.

VOA: special.2010.07.23

Today,the number is still 40 percent. Part of the problem is that a number of big importers, such as China and Japan, are not doing enough to stop the import and sale of illegal timber.

VOA: standard.2010.07.28

If there is an environmental disaster, he warns, it won't just be China's problem, it will be the world's problem.

NPR: Concerns Rise with Water of Three Gorges Dam

Another intriguing alternative is that Apple will address its biggest problem in China.

FORBES: Rumours Of Two New Apple Phones This Year: iPhone 5S And A Cheap iPhone For Emerging Markets

Already the largest producer of carbon emissions by some estimates, China has another energy problem: efficiency.

FORBES: China's Power Problem