raised bog
柯林斯词典
1. N a bog of convex shape produced by growth of sphagnum and other bog plants in acid conditions and the subsequent build up of acid peat 高位沼澤[ecology]
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1. N a bog of convex shape produced by growth of sphagnum and other bog plants in acid conditions and the subsequent build up of acid peat 高位沼澤[ecology]