回頭看

Simplified: 回头看

huítóukàn ㄏㄨㄟˊ ㄊㄡˊ ㄎㄢˋ

    • to review and check the work of an earlier period

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
look back
Meaning
To review and check on the work or situation of an earlier period.

Sources