that it's areas of relative exclusion where people experience

定义是那些人们因为物质和经济上的障碍
physical and economic barriers to accessing healthy foods.

而无法获得健康食品的相对排外的区域
The idea there is depending on where you live,

这个概念取决于你住在哪里
your access to food might vary a lot compared to people

同住在其它地区的人相比
that might live in other areas.

你们能吃到的食物各不相同
Where you live becomes a pretty important determinant of

住在哪里成为了你必须买什么食物的
what foods you have to buy.

重要决定性因素
Before we talked about the cost of foods being a driver,

在我们讨论食物价格成主导之前
and that's certainly the case.

情况也确实如此
Now let's talk about access and that's what this is all about.

我们先讨论下食品的获得及其意义
Food deserts exist where people don't have auto--

食品沙漠现象发生在那些
may not have automobiles or don't have a lot of money,

人们没钱没车的地方