The side of the moon facing the earth and the side facing away have strikingly different topographies .

月亮面朝地球的这面与背对地球的那面有着截然不同的地形特征。

Because the economies , climates and topographies of developing countries vary , so should their carbon-reduction strategies , says mr baeza .

贝扎表示，由于发展中国家的经济、气候和地形各不相同，因此它们的减排战略也应有所差异。