7279| 16
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黑水河canoe camping |
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点评
安大略湖等大湖的水是无色的,你可以下。酱色的水是东部其它的小湖小河的基本特征。所谓白山黑水。但水里的污染物却不一定跟颜色的深浅有关。
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点评
谢谢!
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