Correct

除根

/ chúgēn / 
Strokes

Definition

to root out/to eliminate the roots/to cure once and for all

Example

As a Verb

dig up the roots; pull up by the roots; root out/up; uproot; extirpate

1
Gānyán
肝炎
zhèzhǒng
这种
bìng
病
bù
不
tài
太
róngyì
容易
chúgēn
除根
  
。

Hepatitis cannot be easily rooted out.

2
Zhǎncǎochúgēn
斩草除根

cut the weeds and dig up the roots―stamp out/eradicate the source of trouble