party animal
noun [ C ] informal uk/ˈpɑː.ti ˌæn.ɪ.məl/ us/ˈpɑːr.t̬i ˌæn.ɪ.məl/
热衷于社交聚会的人
someone who enjoys parties and party activities very much and goes to as many as possible
Sarah's a real party animal - she likes to dance all night. 萨拉很热衷于参加聚会——她喜欢整夜地跳舞。