Correct

渗入

/ shènrù / 
Strokes

Definition

to permeate

Example

As a Verb

permeate; seep into

1
Yǔshuǐ
雨水
shènrù
渗入
dìxià
地下
  
。

The rain permeated the ground.

2
Shènrù
渗入
dìxià
地下

permeate the ground; seep into the ground

As a Verb

(of influence, etc) penetrate; infiltrate

3
Fángzhǐ
防止
kǒngbù
恐怖
fènzǐ
分子
shènrù
渗入
wǒguó
我国

be on guard against infiltration of terrorists into our country