心こころを決きめる

expression, ichidan verb

resolve to do; make up one's mind; set one's heart on

Used when someone firmly decides to do something, often after hesitation. The phrase implies a strong, personal commitment.

• 彼かれは留りゅう学がくすることを心こころを決きめた。

  He resolved to study abroad.

• 心こころを決きめて、新あたらしい仕し事ごとに挑ちょう戦せんした。

  I made up my mind and took on a new job.