Global warming is adding to the problem.

全球变暖使得问题更加严峻。

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Adding to the problem, most passenger trains run on track owned by freight railways.

另外一个问题是，绝大多数客运列车运行在原本属于货运的线路上。

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Adding to the problem: products, sales and distribution channels all have proliferated, and the life spans of products have gotten shorter.

同时也带来一个问题：产品、销售额与分销渠道均显著增长，但产品的生命周期却缩短了。

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Adding to the problem, poachers today are more skilled at killing rhinos, and not only with guns.

VOA: special.2009.12.14

Adding to the problem,scientists say, was an already reduced population, resulting from poor conditions last summer.

VOA: special.2010.04.27

And ever-increase tonnage of U.S. coal bound for China is adding to the problem.

FORBES: As Coal Imports Rise, Getting Harder To Breathe In China Cities

Meanwhile, automakers kept building new plants in eastern Europe and in Russia, which is only adding to the problem.

FORBES: Now, An Ugly Mess For Ford In Europe

Adding to the problem was a blast of wintry weather Tuesday that snarled traffic, cancelled hundreds of flights and could have kept some voters home.

WSJ: Anti-gun Democrat shoo-in to replace Jackson Jr.