Attack and prevent
As a Chinese idiom, Pinyin is g à NGJ í f á nghu à n, which means correcting mistakes and preventing disasters. It comes from the Southern Dynasty, Liang and Liu Xie's Wen Xin Diao Long Ming Zhen.
The origin of Idioms
In the Southern Dynasty, Liang and Liu Xie's "Wen Xin Diao Long Ming Zhen", it is said that "those who advocate, therefore, attack diseases and prevent calamities, which is also compared with needles and stones."
Idiom usage
Used as a predicate or attributive; used in writing
Attack and prevent
loyalty , filial piety , chastity and righteousness - zhōng xiào jié yì
close the door and stop sweeping the courtyard and tracks - bì guān què sǎo