Knowing that they will suffer if species decline to the point where they must be listed as threatened, mining companies are learning to tread softly around creatures such as the sage grouse.

矿业公司被告知好生款待附近的艾草榛鸡等动物。否则，如果动物因数量减至濒危规定线以下而入册，公司的日子将不好过。

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Knowing that they will suffer if species decline to the point where they must be listed as threatened, mining companies are learning to tread softly around creatures such as the sage grouse.

矿业公司被告知好生款待附近的艾草榛鸡等动物。否则，如果动物因数量减至濒危规定线以下而入册，公司的日子将不好过。

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