They were also quizzed on how many of their social contacts were trying to lose weight, and if they were trying to lose weight as well.
关于他们的社交圈内有多少人正在努力减肥，他们自己是否正在尝试减肥，这些问题他们都做了问卷。
They were also quizzed on how many of their social contacts were trying to lose weight, and if they were trying to lose weight as well.
关于他们的社交圈内有多少人正在努力减肥，他们自己是否正在尝试减肥，这些问题他们都做了问卷。
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