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1. Oxford Dictionary

   porous

   • IPA[ˈpɔːrəs]

   英式

   • adj.
     (of a rock or other material) having minute spaces or holes through which liquid or air may pass；not retentive or secure
2. • 釋義
   • 相關詞

   adj.

   形容詞

   • 1. (of a rock or other material) having minute spaces or holes through which liquid or air may pass layers of porous limestones some rocks are more porous than others
   • ▪ not retentive or secure he ran through a porous home defence to score easily

   non-porous

   • adj.
     (of a substance) not allowing liquid or air to pass through it; not porous.

   Oxford Dictionary

3. • 更多解釋

   porous

   • IPA[ˈpôrəs]

   美式

   • adj.
     (of a rock or other material) having minute spaces or holes through which liquid or air may pass: layers of porous limestones some rocks are more porous than others

   Oxford American Dictionary