能源咨询公司的吉姆·博克哈德表示，经合组织的石油需求在2005年已达高点，随着价格攀升，其需求一直在减少。
Jim Burkhard of IHS Cera, a consultancy, notes that OECD oil demand peaked in 2005 and has been slipping since in response to the upward march of prices.
据开普敦大学的弗兰克·埃克哈德讲，2010年任何一条河谷内的水都不太正常，更有观察家认为博泰蒂河是一条死河。
According to Frank Eckhardt of the University of Cape Town, the presence of any water in the river valley had become unusual by 2010, and some observers thought the Boteti was a dead river.
《博物学家》的博客报道博泰蒂河在2009年的时候存储了一部分水，但是埃克哈德认为博泰蒂河的上一次洪水还是在1991年。
Naturalist blogs reported that the Boteti held some water in September 2009, but according to Eckardt, its last major flood occurred in 1991.
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