勞心苦思 láo xīn kǔ sī

to think hard; to rack one's brains

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. to think hard
  2. 2. to rack one's brains

Characters

Character Meaning
勞 láo
labor; to toil; to put sb to trouble (of doing sth)
心 xīn HSK 3
heart; mind; intention
苦 kǔ HSK 4
bitter; to suffer; hardship
思 sī HSK 2
to think; to consider