permeable spur

例句：

1. 1. The fabric is made of a material that is permeable to air.
   这种布料是由一种对空气有渗透性的材料制成的。
2. 2. The soil is very porous, allowing water and nutrients to penetrate easily.
   土壤非常多孔，使得水分和养分能够轻易渗透。
3. 3. The walls are made of bricks that are permeable to moisture.
   墙壁是用可以吸收水分的砖块建造的。