a short span of time 短暂的一段时间
Hessler saw household incomes spike from $250 to more than $800 in a time span of five years.
海瑟亲历了当地农民的家庭收入在五年间从原先的250美元一跃到800美元。
Over a time span of longer than one month, the U. S. is still well beyond the grip of deflation.
在年底前的这一个多月时间里,美国仍远不会达到通货紧缩的地步。
Intermediate term prediction would fall into a time span of a few weeks to a few years, and again it would not be of great practical usefulness.
中期预测的时间跨度可从数周到数年,但这也没有很大的实际作用。
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