Every time any official in Beijing deliberates publicly about seeking an alternative to the U.S. dollar for the $2.1 trillion China holds in reserve, currency traders have a heart attack.

每当北京的任何官员公开商议，为中国持有的2.1万亿美元外汇储备寻找替代美元的货币时，外汇交易员就会心脏病发作。

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In 1897, China changed its currency.

1897年，中国更换了货币。

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As recently as last week China said it would not discuss the dispute over its currency at the Toronto summit.

VOA: special.2010.06.25

China's currency policies have been intensely criticized by countries who say the yuan has been undervalued for China's own benefit.

VOA: standard.2010.06.21

They also say Washington has avoided the tough talk of previous administrations about the value of China's currency.

VOA: standard.2009.11.10

They have so-called A shares that trade in Shanghai and Shenzhen and are only available for local investors because China has currency controls and China has controls whether the money can move in and out.

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The published figures for the breakdown of reserves by currency omit China, even though the country accounts for a fifth of foreign-exchange reserves.

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In a modest but significant step towards liberalising its currency, China loosened the trading limits for the yuan, allowing prices against the dollar to fluctuate by up to 1% either side of the reference rate set each day by the Chinese central bank.

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