力ちからを尽つくす

expression, godan verb (-su)

exert oneself; make every effort; do one's best

Implies putting in all one's strength or ability to accomplish something. Often used in contexts of hard work, dedication, or strenuous effort.

• 彼かれは試し験けんに合ごう格かくするために力ちからを尽つくした。

  He exerted himself to pass the exam.

• チームのために力ちからを尽つくします。

  I will do my best for the team.