耗竭限度，藏量指一项自然资源可耗竭的限度。

Depletion allowance, reserve an allowance for exhaustion of a natural resource.

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我们正在耗竭不可再生的自然资源，例如化石燃料，消耗的速度远远超过了我们寻找替代品的速度。

We are using up non-renewable natural resources, such as fossil fuels, much faster than we are finding alternatives for them.

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尽管有耗竭的危机，又会伤害自然资源，不环保的化石能源却大受欢迎；而风力能源，同样能维持灯火终宵通明的马力—而且干净许多。

Unclean fossil fuels are popular, even though they deplete or harm natural resources, yet wind power also has the horses to keep lights on through the night-and is clean.

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