gusto
noun [ U ] uk/ˈɡʌs.təʊ/ us/ˈɡʌs.toʊ/
（尤指对参加表演的）兴致勃勃，热情
great energy, enthusiasm, and enjoyment that is experienced by someone taking part in an activity, especially a performance
Everyone joined in the singing with great gusto. 每个人都兴致勃勃地加入到合唱中。
Synonyms: relish zest