瘁

鞠躬尽瘁

jū gōng jìn cuì

to bend to a task and spare no effort (idiom); striving to the utmost

鞠躬尽瘁，死而后已

jū gōng jìn cuì , sǐ ér hòu yǐ

to bend to a task and spare no effort unto one's dying day (idiom); striving to the utmost one's whole life

心力交瘁

xīn lì jiāo cuì

to be both mentally and physically exhausted (idiom)

神劳形瘁

shén láo xíng cuì

to be completely drained both emotionally and physically (idiom)

身心交瘁

shēn xīn jiāo cuì

worn out in body and soul (idiom)