One belongs to BHP Billiton, a big mining company, hauling iron ore in trains more than a mile long to ships bound for China and elsewhere in Asia.

其中一条铁路线属于采矿巨头必和必拓。沿着这条铁路线，铁矿石被装上超过一英里长的火车上，运到港口，然后被装上货船运往中国及亚洲其他地区。

youdao

BHP Billiton said the increase was due to strong demand for minerals, especially in China.

必和必拓公司指出这主要是因为对矿产需求的增加，尤其是中国。

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Some thought BHP Billiton's decision was evidence of China's change in growth expectations beginning to impact global demand, and other economies as a whole.

BBC: How China drives commodities down

This has made it difficult for the Brazilian miner to compete effectively with rivals like BHP Billiton and Rio Tinto that are geographically closer to China.

FORBES: Is There No End To Vale's Woes?

So commodities companies such as BHP Billiton are now deciding that the reduced demand for their products from China make it harder to justify investing in those projects for the moment.

BBC: How China drives commodities down