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For centuries art detectives had to rely mainly on connoisseurship .

几个世纪以来，艺术侦探必须主要依赖其鉴赏功力。

Today , not all detectives are human .

今天，并非所有的侦探都是人类。

And it would also be a great drug for detectives and spies .

它还可以成为间谍和侦探手中非常棒的药物。

At three o'clock the two detectives drove to the clarksons ' house .

3点钟，两名侦探开车去了克拉克森家。

All of which suggests that 2012 will be a bumper year for fraud detectives .

所有这一切都表明，2012年将是商业欺诈侦探的丰收年。