ebullient
adjective uk/ɪbˈʊl.i.ənt/ us/ɪbˈʊl.i.ənt/
精力充沛的;热情洋溢的;兴高采烈的
very energetic, positive, and happy
He wasn't his usual ebullient self. 一贯热情洋溢的他一反常态,跟换了个人似的。
Synonyms: exuberanthigh-spirited
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