The world's total forest area is just over four billion hectares.

VOA: special.2010.04.06

the total amount of the work that we can get out is just given by the area inside this curve.

能够输出的功就是,我们可以得出来,曲线所包围的面积。

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so the total rent is about four thousand for two bedroom. In that area, so.

所以整套的租金是每月4000美金。那片地区，

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