在这项研究的第二波，证实在孩童时期频繁搬家的人们很可能死亡的几率会大些。
And people who moved a lot as kids were also more likely to die before the second wave of the study.
如果你选择的人看上去像是知道自己在做什么，而你的相机质量不错，且在你让他们帮忙拍照前都调好了设置，那么成功的几率要大些。
Boost those chances by choosing someone with a good camera who looks like they know what they're doing, and make sure the settings on your camera are right before you have them take the pic.
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