Statisticians at oregon state university have done just that .

美国俄勒冈州立大学的统计学家已做到了这点。

Until recently oregon faced similar problems .

直到最近以前，俄勒冈也面临同样的问题。

Similar tunnels exist in milwaukee and portland , oregon .

在密尔沃基、波特兰、俄勒冈有类似的设施。

Oregon is one of only five states with no sales tax .

俄勒冈是美国仅有的5个免销售税的州之一。

But what happens when the oregon rain returns in mid-october ?

不过要是俄勒冈的雨在十月中旬又回来了该怎么办？