根据是美国国家气候数据中心的报告，美国在2011年7月所遭受了史无前例的干旱，受灾地区之广，已超过了过去12年以来任何一个月份。
More of the United States was in exceptional drought in July 2011 than in any other month in the past 12 years, according to the National Climatic Data Center.
今年干旱的情况一直持续到8月，9月份才开始降雨，点燃了农民能够种植小麦等冬季作物的希望。
This year a long dry spell lasted until August, but rain began to fall this month raising hopes that farmers will be able to plant winter crops such as wheat.
在雨量丰富的月份，公园地区居民饲养的山羊可以自由自在地吃野生植物，当干旱季节到来时，再把它们赶到一起。
Raised by residents of the park, goats graze freely on wild vegetation during the lush months of rain, then are rounded up when the dry season arrives.
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