良苦用心 liáng kǔ yòng xīn

DEFINITIONS

  1. to ponder earnestly
  2. to give a lot of thought to sth

CHARACTERS

良 liáng
HSK 5
good, virtuous, respectable
苦 kǔ
HSK 4
bitter; hardship, suffering
用 yòng
HSK 3
use, employ, apply, operate; use
心 xīn
HSK 3
heart; mind, intelligence; soul