porous
/ˈpɔ:rəs; `pɔrəs/ adj
1 allowing liquid or air to pass through, esp slowly 能使液体或气体（尤指缓慢地）穿透的; 能渗透的
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.
In hot weather clothes made of a porous material like cotton are best. 热天穿棉布之类有渗透性的材料做的衣服最为适宜. Cf 参看 permeable (permeate).
2 containing pores 有毛孔或气孔的.