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independence of will or action; self-direction; autonomy; initiative; identity
主体性を持って行動する。
Act with initiative.
子供の主体性を育てることが教育の目標だ。
Nurturing children's autonomy is a goal of education.
若者が主体性を持って社会問題に取り組む姿は頼もしい。
It is reassuring to see young people tackle social issues on their own initiative.