looker-on

noun

复数形式 lookers-on

someone who watches something that is happening in a public place but is not involved in it

在公共场所观看正在发生的事情，但没有参与其中的人;旁观者

At every gathering for dances, sports, or games of any kind there are more lookers-on than participants.

每次舞蹈、体育或其他比赛的活动中，旁观者都比参与者多。