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to hit (someone); to strike; to beat
to make (a speech); to give (an address)
「打つ」 has another reading with different meanings.
子供を打ってはいけない。
You shouldn't hit children.
候補者が街頭で演説を打つ。
A candidate gives a speech on the street.
犯人を打って取り押さえた。
I hit the criminal and caught him.