porosint

例句：

1. 1. The soil has many pores that allow water to penetrate easily.
   土壤有许多孔隙，使水分容易渗透。
2. 2.The engineer found a cavity in the wall that needed to be filled.
   工程师在墙上发现了一个需要填充的空洞。
3. 3. The scientist noticed a gap between the plates of the microscope, which could affect its performance.
   科学家注意到显微镜的两块板之间有一个缝隙，这可能会影响其性能。