严格来讲，这一结论只适用于上个世纪前五十年。
Strictly, this result applies only to the first half of the last century.
毕竟随着全球变暖的发生，20世纪前五十年飓风发生次数的比我们这五十年来要多。
After all, we had more hurricanes in the first half of the 20th century than in the last 50 years, as global warming was taking place.
今天当你到50岁的时候，你真切的希望未来有足够长还能够像你前五十年那样投入工作。
Today when you reach 50 you can realistically expect to look forward to as many working years ahead as you have behind you.
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