Let's put zero here because these are not gross returns these are returns, so they're often negative.
这里做零点,注意这不是总收益,而是年度收益,有可能是负数的
That is, how many hamburgers do we think are being eaten and that's the food disappearing; how much of the foods are being consumed in processed products and the like, so that's a pretty gross estimate as well.
比如说,多少个汉堡包被吃了,那就是食物消费,有多少食品被,以加工好的成品等形式消费,所以其中估计的成分也很多
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