We can reach back and grab that dust, and we can learn a lot about health from it, so if our choices are part of our health, what we eat is a really important aspect of our health. So you can do something very simple and basic and take a picture of your food, and if enough people do that, we can learn a lot about how our food affects our health.
提取我儿子身后的粉尘 可以得到很多关于健康的信息 如果选择是健康的一部分，那么 饮食是健康很重要的一部分。你可以随意的 拍一张食物的照片 如果有足够多的人这样做，我们就可以从中调查 食物对健康的影响