近来信贷违约掉期的市场交易者们不寻常的押注也许并不令人惊奇：美国可能会拖欠它的债务。
Perhaps it is no surprise that traders in the credit-default swaps market have recently made bets on the unthinkable: that America may default on its debt.
正如你所看到的，没有系统的和客观的方法来确定是否一个给定的财务指标，如注销(write off)或内幕交易模式，是高还是不寻常的。
As you can see, there is no systematic and objective means to determine whether a given financial metric, such as a write-off or insider trading pattern, is high or unusual.
她同意这笔交易，不寻常的事情发生。
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