noun🔗Share旁观者,局外人 A person who, although present at some event, does not take part in it; an observer or spectator."The bystander watched the other students play basketball, but didn't join in the game. "旁观者看着其他学生打篮球,但他没有加入。personeventsituationsocietyactionhumanmoralChat with AIVocabulary GamePractice Reading