力ちからを注そそぐ

expression, godan verb (-gu)

concentrate one's effort; devote one's energy; put one's heart into

Used when someone focuses their energy, time, or resources on a particular task, project, or goal. Often followed by ～に or ～へ.

• 彼かれは研けん究きゅうに力ちからを注そそいでいる。

  He is devoting his energy to his research.

• 環かん境きょう問もん題だいの解かい決けつに力ちからを注そそぎたい。

  I want to concentrate my efforts on solving environmental problems.