When you say something, you can't take it back. You must keep your promise. With "recalling a horse is hard to chase". The origin of the idiom: "The Biography of Deng Xi": "If a word is inconsistent, the horse cannot be chased; In a hurry, the horse can't reach. " Shu Wei's Criminal Records: "Harmony, morality and law is a kind of criminal book, which is practiced everywhere. If the criminal's name is lost, the horse will not chase it. "

Traditional writing: Sima does not chase.

ㄙㄧㄇㄚミㄅㄨㄓㄨㄟ Athena Chu.

Synonym of Ma Xu's failure to pursue: it is difficult for Ma Xu to pursue what he said, and it is also difficult to take it back; A fait accompli cannot be undone. History of the New Five Dynasties: Shi Lichuan, Empress of Jin Gaozu: "It's a pity that those who were hated by the first emperor were inherited by the heirs."

Idiom grammar: as predicate and clause; Used to keep people's promises.

Degree of common use: common idioms

Emotion and color: neutral idioms

Idiom structure: subject-predicate idioms

Generation time: ancient idioms