Heavily populated and short of water, northern China is in the front-line.

中国北方地区人口密集，水源短缺，处于气候变化影响前线。

youdao

If China were faced with a united front, it might go along, however reluctantly.

一旦中国面临联合作战，即使它百般不愿，也可能会随波逐。

youdao

Secondly, I would like to ask your view about the biggest source of concern and worry for China on the external front?

另外，您刚刚讲到中国内部的一些担心，如果允许我继续问一个关于“心”的问题的话，请问外部的话，国际上您最大的 担心 是什么？

youdao

On the economic front, China is paying the price for its rescue plan.

FORBES: 2011: For China, It's The Year Of Living Dangerously

We have some difficulties on the trade front with China.

NPR: China's Growing Appetite for Business

On another resource front, China is pressing its advantage.

FORBES: China Maneuvers To Snatch POT From BHP