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excitement; stimulation; agitation; arousal
試合が始まる前から観客は亢奮していた。
The audience was excited even before the match started.
亢奮しすぎて夜なかなか眠れなかった。
I was so excited that I couldn't fall asleep.
彼の演説を聞いて聴衆が亢奮し始めた。
The crowd got excited listening to his speech.