竭虑

竭慮
jiélǜ
  1. (literary) to ponder deeply; to meditate on; to ruminate on; to muse on
  2. to ponder deeply; to meditate on; to ruminate on; to muse on

Wiktionary

Entry Composition

1 竭 jié to exhaust
2 虑 lǜ
  1. to think over
  2. to consider
  3. anxiety

Containing this entry

殚精竭虑 dānjīngjiélǜ
  1. to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly
  2. to rack one's brains
  3. to leave no stone unturned