Each story was also paired with a photograph depicting someone of either the younger or the older age group.

每个故事还配有一张年轻人或老人的图片。

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At this station, reps used an Android app paired with a smartphone camera to photograph plastic food samples, then upload them to a server for analysis.

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But the researchers found that many of the participants completely avoided asking their partners about the skin color of the person in the photograph especially when paired with a black partner.

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