一错再错

一錯再錯
cuòzàicuò
  1. to repeat errors
  2. to continue blundering
  3. to make continuous mistakes

CEDICT

to make the same mistake(s) again and again; to continue making error after error

Wiktionary

不知悔改过失

重編國語辭典

不知悔改过失

維基詞典

Entry Composition