But over a period of centuries such errors will come out in the statistical wash.

但在几千年的时期内，统计处理将能够指明此类错误。

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Once, rolling off her and almost falling off the bed, he noticed a smear of period blood that K. had been unable to wash out.

有次结束后他几乎从床上摔下去，他注意到床上的K没洗掉的一点血迹。

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Methods: After a control period of 28 days, aromatherapy was performed over the following 28 days, with a wash out period of another 28 days.

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