The Volga River and the Ural River discharge into the Caspian Sea.

伏尔加河以及乌拉尔河都有流入里海.

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Potentially huge oil also lie underneath the Caspian Sea.

在里海的底部存在了巨大的石油能源.

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The Caspian Sea is the largest lake in the world.

里海是世界上最大的湖.

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Finally the Polos reached the Persian town of Saba, to the south of the Caspian Sea.

最后,波罗一行到达了波斯国的席巴城, 该城位于里海以南.

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After September 11 , the Caspian Sea drew more and more attention because of its abundant oil reserves.

“9·11”事件之后, 作为可以取代中东石油供应地的中亚里海备受关注.

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