Scientists have dated sharp-edged flakes of stone found in the fine-grained sediments of a dry riverbed in the Afar region of Ethiopia to between 2.52 and 2.60 million years ago.
科学家们已经确定，在埃塞俄比亚阿法尔地区干燥河床的细颗粒沉积物中发现的具有锋利边缘的石片存在于252万至260万年前。
Much of the team's work will be on the ground in the Afar region of Ethiopia, also known as the Danakil depression.
该小组很多工作将在埃塞俄比亚的阿尔法地区进行，也就是达纳吉尔凹地(DanakilDepression)。
To learn from afar about a key region and its people is a respectable pursuit.
远距离了解一个重要地区及其人民，是一种可敬的追求。
To learn from afar about a key region and its people is a respectable shaiya pursuit.
远距离了解一个重要地区及其人民，是一种可敬的追求。
To learn from afar about a key region and its people is a respectable shaiya pursuit.
远距离了解一个重要地区及其人民，是一种可敬的追求。
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