渗透物

例句：

1. 1.The oil penetrated the paper to makeit softer.
   油渗透进纸里使纸变得更软。
2. 2. The penetratingagent was able to dissolve the wax.
   渗透剂能够溶解蜡。
3. 3. Thenew treatment penetrates deepinto the skin to fight acne.
   这种新的治疗方法能深入皮肤治疗痤疮。