In particular, the falling exchange rate of dollar at present has resulted in heavy loss to the foreign exchange reserve of China which is largely dollar-denominated asset holding.

尤其是当前美元汇率走低，对以美元资产为主的我国外汇储备造成了巨大的损失。

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What's the rate of exchange against the dollar?

与美元的兑换率是多少？

《牛津词典》

This is in part due to exchange-rate movements: the depreciation of the dollar against many other currencies has blunted the impact of an increase in the dollar price of food.

这部分是由于汇率的运动：美元相对于其它许多货币的贬值削弱了以美元计价的食品价格上涨带来的影响。

youdao

The CurrencyShares Australian Dollar Trust ( FXA) tracks the exchange rate of the Australian dollar and currently yields 3.1%.

FORBES: Chinese Yuan Takes Global Stage

By the end of next year, the exchange rate of the yuan to the dollar should be in the neighborhood of 6.1 to 1.

FORBES: MTD's 2011 Predictions

The long-term chart of the euro-dollar exchange rate shows a series of lower highs since 2007 (line c).

FORBES: The Week Ahead: Currency Wars and Commodities