Correct

劳瘁

/ láo cuì /
Strokes

Example

As a Verb

be exhausted from hard work

1
Láocuì
劳瘁
shēng
一生

drudge for one's whole life

2
Láocuì
劳瘁
ér

die from fatigue

3
láocuì
不辞劳瘁

spare no pains; without sparing toil