The outgrowth of conservation, the inevitable result, is national efficiency.
节约的必然结果是国家效率的提高。
-- Gifford Pinchot 平肖
The outgrowth of conservation, the inevitable result, is national efficiency.
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The outgrowth of conservation, the inevitable result, is national efficiency.
节约的必然结果是国家效率的提高。
-- Gifford Pinchot 平肖
