Half of the study's participants kept using Facebook as they normally would, while the other half stayed off Facebook for a week.

一半的研究参与者和往常一样继续使用Facebook，另一半人停止使用Facebook一周。

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They stayed there for nearly a week.

他们在那呆了将近一周。

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This is the first week they have stayed at the estate which they bought as a base for their annual summer visits to Wales.

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Too bad for his students he stayed as long as he did, because that was a week they could have spent learning physics, and other important materials.

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