积习难改 jī xí nán gǎi

DEFINITIONS

  1. old habits are hard to change (idiom)

CHARACTERS

积 jī
HSK 4
accumulate, store up, amass
习 xí
HSK 1
practice; flapping wings
难 nán
HSK 3
difficult, arduous, hard; unable
改 gǎi
HSK 4
change, alter; improve, remodel