Polygonum hydropiper

Polygonum hydropiper

As a Chinese idiom, the Pinyin is Li à och ó NGW à NGX à n, which means that the insects who are used to eating Polygonum don't feel spicy anymore. It means that people will work hard for what they want. From selected works Wang can (seven sorrows).

The source of the idiom is Wang can (seven sorrows) in Wenxuan: "if you don't know what's wrong with Polygonum, don't consult with me." In Wei Du Fu written by Zuo Si of Jin Dynasty, "learning the sympathies of Polygonum and insects, playing the Wei valley of advance and retreat." Liu Song Bao Zhao's "Dai Fang Ge Xing" said: "Polygonum insects avoid Kui pansy, learning to be bitter does not mean to be wrong."