Don't expend all your time on such a useless job.

不要把时间~在这种无用的工作上。

youdao

Don't expend all your time on such a useless job.

不要把时间消耗在这种无用的工作上。

youdao

Don't expend all your energy on such a useless job.

不要把你的精力全花在这无益的工作上。

youdao

Just run hard, expend all your energy, and maybe you'll find it.

CNN: Parents, why are you pushing your kids?

But all they asked us to do was to expend the energy necessary to open the envelopes containing our tax cuts.

CNN: Clinton: Time again to choose a more perfect union

The Romney win likely makes that contest a do-or-die battleground for nearly all the other contenders, most of whom now appear ready to expend most of their campaign funds on TV ads, many of them aimed at attacking Mr. Romney.

WSJ: Romney Wins New Hampshire Primary