looker-on

剑桥词典

someone who watches something that is happening in a public place but is not involved in it
旁觀者
At every gathering for dances , sports , or games of any kind there are more lookers-on than participants . 每次舞蹈、躰育或其他比賽的活動中，旁觀者都比蓡與者多。
同義詞
onlooker 返回 looker-on