刻苦学习 kè kǔ xué xí

DEFINITIONS

  1. to study hard
  2. assiduous

CHARACTERS

刻 kè
HSK 3
carve, engrave; quarter hour
苦 kǔ
HSK 4
bitter; hardship, suffering
学 xué
HSK 1
learning, knowledge; school
习 xí
HSK 1
practice; flapping wings