也就是说,这个argument可以出很多种题来考我们。这就是为什么OG17的解答里说"Evidence that the weather disturbance either hindered the global distribution of soybeans or increased global demand for soybeans could support the claim that the weather disturbance caused the increase in soybean prices.
试想一下,去年的harvest其实是补充了inventory,这些inventory可以放到今年卖。销售和生产不在同一个时间发生,中间的时间用来distribute the crops。