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来源:雅诚德英语网
Estimates for the life of the Nubian sandstone aquifer range from a century to a millennium.
学者们对努比亚砂岩含水层寿命的估计相差悬疏,从一百年到一千年不等。
Estimates for the life of the Nubian sandstone aquifer range from a century to a millennium.
学者们对努比亚砂岩含水层寿命的估计相差悬疏,从一百年到一千年不等。