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very; very much; greatly; considerably; highly; exceedingly; a great deal; a lot; to one's heart's content
今回の成功を多いに喜んでいる。
I'm greatly pleased with this success.
彼の意見に多いに賛成した。
I strongly agreed with his opinion.
この経験は多いに役に立つだろう。
This experience will probably be very useful.