Correct

力不胜任

/ lì bùshèng rén /
Strokes

Definition

not to be up to the task (idiom)/incompetent

Example

Definition

be unequal to one's task; be unable to measure up to one's duty; be beyond one's ability/capacity; be incompetent

1
cónglái
从来
zuò
shèngrén
力不胜任
de
shìqing
事情
  

He never does the work that is not within his power.