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to say; to tell; to state; to express; to offer; to extend (greetings, congratulations, etc.)
to do
この場を借りてお礼を申上げる。
I would like to take this opportunity to express my gratitude.
社長にお祝いの言葉を申上げた。
I offered congratulatory words to the company president.
先程からお願いを申上げている。
I have been making a request since earlier.