日積月累 rì jī yuè lěi

DEFINITIONS

  1. to accumulate over a long period of time

CHARACTERS

日 rì
HSK 2
sun; day; daytime
積 jī accumulate, store up, amass
月 yuè
HSK 1
moon; month; KangXi radical 74
累 lěi
HSK 2
tired; implicate, involve; bother