having many small holes that allow water or air to pass through slowly 多孔的；透水的；透气的 porous material/rocks/surfaces 渗透性材料／岩石／表面 He added sand to the soil to make it more porous. 他往土里搀沙子以提高渗水性能。
Oxford Collocations DictionaryPorous is used with these nouns:- border
- rock
Word Originlate Middle English: from Old French poreux, based on Latin porus ‘pore’.