他们注意到水中漂浮着一些50和20美元的纸币。
They noticed fifty and twenty dollar bills floating in the water.
纸币曾被用来在市场上买东西。
现在世界各地都在使用纸币。
自汉唐以来，中国的铜钱和纸币开始被周边各国复制。
Since the Han and Tang Dynasties, Chinese copper coins and banknote began to be copied by various neighboring states.
瑞典是欧洲第一个印刷并使用纸币的国家，但它可能很快就会废除实物货币。
Sweden was the first European country to print and use paper money, but it may soon do away with physical currencies.
你应该还记得，英格兰银行曾经发行过两张面额分别为一百万英镑的纸币，用于与外国的一些公开交易有关的特殊目的。
You will remember that the Bank of England once issued two notes of a million pounds each, to be used for a special purpose connected with some public transaction with a foreign country.
将来人们会不会不再使用纸币？
人们对纸币没有什么信心。
我们很少使用纸币。
马可看到中国人在市场上使用纸币，感到很惊讶。
Marco was surprised to see Chinese people using paper money in the markets.
纸币恰恰相反。
但即便在纸币问世后，这一习惯仍然保留了下来。
目前，包含这项技术的样机正在测试，配置新型传感器的纸币验钞仪有望在年末（2008年）上市。
A prototype device incorporating this technology is presently undergoing testing, and a note validator equipped with the new sensors is expected to be commercialized by the end of the year.
参与者们对硬币和纸币的估值差异也在他们的意料之中(毕竟对估值差异的预期正是此项实验的出发点)。
Nor were they that surprised to find a difference in how the participants valued coin and note (the expectation that there would be a difference was, after all, the point of doing the experiment).
他说，投资者将黄金看成是抵御纸币贬值的保值工具，一个由于利率较低而机会成本较小的保值工具。
He says investors see gold as a hedge against the depreciation of paper currencies, a hedge which has little opportunity cost because of low interest rates.
2003到2006期间，美国非纸币支付的年度增长率为4.6%，而支票支付则下降了13.2%。
Between 2003 and 2006, noncash payments in the US increased 4.6 percent annually, while the percentage of payments made using checks dropped 13.2 percent.
美元发行越多，美国的黄金储备就要支持越大量的纸币，那么美元和黄金的固定价格联系就会遭致越大的质疑。
The more dollars were supplied, the more the currency's link to gold would be questioned since America's gold stocks would support an ever-larger pile of banknotes.
全世界的所有纸币和债券的全部价值大约是100万亿，而人类历史上开采出的所有的黄金大概是50亿盎司。
The total value of all the paper money and bonds in the world is about $100 Trillion, and all the gold ever mined in all of the human history is just under 5 Billion ounces.
直到本年为止日元的疲软很容易解释：因为2001年日本银行（BoJ）为战胜通货紧缩而批量印制纸币。
Until this year the yen's weakness was easy to explain: since 2001 the Bank of Japan (BoJ) had been printing loads of money in order to defeat deflation.
研究人员从17个城市收集到230张纸币样本，并使用水和超声波提取方法，再加上气相色谱分析-质谱法对样本进行测试。
The researchers used water and an ultrasonic extraction process, followed by gas chromatography-mass spectrometry to quantify the amount of cocaine in more than 230 bills collected in 17 cities.
如果你愿意横穿一条繁忙的街道，去捡一张20英镑的纸币，把钱放在那里的经济学家可推断出一些与你承受风险的意愿有关的东西。
If you're willing to cross a busy street to pick up a? 20 note, the economist who put it there can infer something about your willingness to accept risk.
对于那些将黄金当做纸币的一种替代品的投资者来说，黄金的吸引力与这些投资者对其他货币保持其价值的能力的恐惧程度密切相关。
For investors in gold who think of it as an alternative to paper currencies, its attractiveness is intimately linked to their fears about the capacity of these other currencies to retain their value.
对于那些将黄金当做纸币的一种替代品的投资者来说，黄金的吸引力与这些投资者对其他货币保持其价值的能力的恐惧程度密切相关。
For investors in gold who think of it as an alternative to paper currencies, its attractiveness is intimately linked to their fears about the capacity of these other currencies to retain their value.
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