Designing algorithms to distinguish originals among many very similar records is difficult, and almost certainly requires frequent human intervention.

设计出能区分很多相似记录中不同作品来源的算法是很困难的，而且几乎肯定会需要频繁的人为介入。

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Some investors are allocating money towards countries with beaten-up currencies, such as India or Russia, or those with more benign central banks, such as Mexico, that do not have a history of frequent forex intervention.

CNN: QE3 triggers fear of new currency wars