指过去的某一段时间。
据数据机构STR报告，在美国，单间可用房收益(指一定时间内的客房总收入除以可用客房总数)过去六年持续上升。
In America RevPAR (revenue divided by rooms available in a given period) has risen for the past six years, according to STR, a data outfit.
比起健康的胖子，后一组研究对象（指还有其它健康问题的胖子）在过去的十年时间里在认知测试中得分下降高达22.5%。 。
Thee latter group experienced a 22.5 percent faster decline on their cognitive test scores over the decade than those who were healthy.
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