心こころを入いれる

expression, ichidan verb

put one's heart into; devote oneself to

Used when someone puts genuine effort, care, or passion into a task or activity.

• 彼かれは仕し事ごとに心こころを入いれている。

  He puts his heart into his work.

• もっと心こころを入いれて練れん習しゅうしなさい。

  Practice with more dedication.