“费力的”造句

他发现自己已无力应对那份劳神费力的工作了。
He found he could no longer cope with his demanding job.

他派我去干白费力的事。
He sent me on a fool's errand .

这项费力的工作足以使人精疲力竭.
This exhausting work is enough to run everyone down.

• #费力的