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to do; to commit; to carry out; to bring about
何をなすべきか自分でよく考えなさい。
Think carefully about what you should do.
準備を整えてから行動をなすべきだ。
You should act only after making proper preparations.
彼女は社会に貢献をなした人物だ。
She is someone who made contributions to society.