could be acceptable in a big supermarket,

贩卖利基食品
because there are other things that are selling in higher amounts,

是因为大超市也同时销售大量的其他东西
that's not the case here,

小超市则不然
so they have to sell what people are buying more of.

所以他们得卖一些人们常买的商品
The markets can't afford the spoilage,

这些小超市无法承担货损
some don't have refrigeration equipment to counteract the spoilage.

有些甚至没有冷藏设备来防止食物变质
They tend to stock the hard vegetables

当他们有这些设备的时候
when they have them at all--

他们偏向于储存一些硬实的蔬菜
the vegetables that may not be the highest in nutrients

这些蔬菜可能营养价值不是最高
but the ones that can last a long time without spoiling.

但却是可存放时间最长
In some cases, the ethnic mix makes stocking difficult,

有时候各民族混居也让储存变得困难
because you have so many different groups

因为在那些贫民区住