搬老皇曆

Simplified: 搬老皇历

bānlǎohuángli ㄅㄢ ㄌㄠˇ ㄏㄨㄤˊ ˙ㄌㄧ

    • to handle new matters with outdated methods

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
take out the old almanac
Meaning
To handle new matters with outdated methods. Critical.

Sources