period staggering

基本解釋

This “patent cliff” has been estimated to be worth a staggering $200 billion over the period 2008-12.
估計從2008到2012年，這種“專利失效 ”造成的損失驚人，大約為2000億美元。
ecocn.org
There is still a staggering gap—almost a third of the state’s students are black—but the improvement in Alabama was the largest in the country over that period.
雖然這與該州三分之一的學生為黑人還是有差距的，但在過去的這段時間中，阿拉巴馬州已經(jīng)是全國進步最快的了。