zhì / lǐ / zhè / zhǒng / wū / rǎn / bù / néng / zhǐ / chǔ / lǐ / biǎo / miàn / bì / xū / jiǎn / cǎo / chú / gēn

治理这种污染不能只处理表面，必须剪草除根。

This kind of pollution cannot be dealt with superficially; it must be eliminated at the root.