殚

阑殚

lán dān

tired and exhausted

殚力

dān lì

to strive

殚心

dān xīn

to devote one's entire mind

殚闷

dān mèn

to faint

殚残

dān cán

to destroy

殚竭

dān jié

to use up

殚精极虑

dān jīng jí lǜ

to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly

殚精竭虑

dān jīng jié lǜ

to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly