殚精极虑
Traditional form:
殫精極慮
Pinyin (reading):
dānjīngjílü
Definitions:
- to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly
- to rack one's brains
- to leave no stone unturned
Characters:
- 殚 - utmost, entirely, quite; to use up
- 精 - essence, germ, spirit
- 极 - extreme, top; final, furthest, utmost; pole
- 虑 - anxious, concerned, worried
Traditional characters: