❶決心する, (心に)決める
関連語「決心」は decision.
Think well before you decide.
Think well before you decide.
決心する前によく考えなさい.
She decides by herself what to wear to school.
She decides by herself what to wear to school.
彼女は何を学校に着て行くかを自分で決める.
He decided to [not to] go to college.
He decided to [not to] go to college.
彼は大学へ行く[行かない]決心をした.
He decided that he would go to college.
He decided that he would go to college.
彼は大学へ行くことに決めた.