外渗

例句：

1. 1. The oil has started to seep through the cracks in the concrete.
   油开始从混凝土的裂缝中渗出。
2. 2.The water slowly seeped into the drysoil.
   水慢慢地渗入干土中。
3. 3. Thepoisonous gas began to permeatethe room.
   有毒气体开始渗透整个房间。