And because of that, as grain changes hands -- and I've measured that it changes hands four, five times in its trajectory from the farmer to the consumer -- every time it changes hands -- and I've seen this all over rural Africa -- it also changes sacks.
而且正因此，随着谷物转手—— 而我已经计算过从农民到消费者这一路 需要转手4，5次。 每次转手——而我看到这样的事情发生在整个非洲农村地区—— 它还要换包装。