名词旁观者，目击者; 观众（等于spectator）

1. 旁观者：hermit隐居者 | onlooker旁观者 | perfectionist 完美主义者

2. 旁观者;观众：uprising#叛乱 | onlooker#旁观者;观众 | vanity#虚荣心

3. 旁观者,观看者：looker 观看者,检查员,美女 | onlooker 旁观者,观看者 | overlooker 监工,工头

1. 旁观者
An onlooker is someone who watches an event take place but does not take part in it.

e.g. A handful of onlookers stand in the field watching.
少数几个旁观者站在现场观看。

noun

1. someone who looks on

Synonym: looker-on