The trade surplus leads to large inflows of foreign currency, which is bought up by the central bank in order to hold down the exchange rate.

贸易顺差使得大量的外资流入，这些都是央行买来作为压低汇率之用的。

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Its trade surplus mounts inexorably, as does its stash of foreign exchange -the essence of influence in today's world.

它的贸易顺差无情地攀升，它储藏外汇的仓库也在膨胀——这是当今世界影响力的实质。

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The trade surplus pours a steady stream of foreign-currency export earnings into China, funds the central bank buys up in exchange for local currency and holds in its official reserves.

贸易顺差给中国带来了稳定的外汇出口收益，给中国央行提供了收购资金以交换本币并维持官方储备。

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Likewise, a surplus in U.S. foreign trade would sow the seeds of a reversal in the future.

FORBES: We Need Demand, Not Protectionism

Dollars are pouring in from China's trade surplus, as well as from foreign direct investment and from speculators betting that China's currency will appreciate.

NPR: Chinese Cash Moves Could Roil Markets

One reason why Chinese officials have not felt the need to devalue earlier is that foreign trade has remained in balance, or, better, in surplus.

ECONOMIST: China��s currency: The final throw | The