partygoer /ˈpɑːtiːgəʊə/

• 1. 

  N-COUNT A partygoer is someone who likes going to parties or someone who is at a particular party. 社交聚会常客; 特定聚会的参加者

  例：

  At least half the partygoers were under 15.

  这些参加聚会的人中至少有一半不到15岁。