If you are to have an important exam, you'd better prepare one more pen in reserve.

如果你将要参加一场重要的考试的话，你最好准备多一支备用的笔。

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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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200 police officers were held in reserve.

200名警察随时待命。

《牛津词典》

Federal Reserve Chairman Ben Bernanke sounded more hopeful as he appeared Tuesday before the Joint Economic Committee in Congress.

VOA: special.2009.05.08

In the United States we have twelve Federal Reserve Banks but we have a Federal Open Market Committee.

在美国,我们有十二个联邦储备银行,但是我们有一个联邦公开市场委员会。

耶鲁公开课 - 金融市场课程节选

In the United States we did not have a central bank until 1913 when we created the Federal Reserve System.

在美国，我们直到1913年,创立了联邦储备银行制度。

耶鲁公开课 - 金融市场课程节选

Descendants of the cowboys he beat have disputed Baca's account of the fight in Reserve.

ECONOMIST: Latino heroes

Subsidies for staples depend on governments having enough money in reserve to cover the costs.

CNN: Middle East inflation soars

Another reason for the delays: Airlines keep too few planes and crew in reserve.

NPR: Holding Pattern: Flight Delays are Going Up, Up, Up