n. someone who looks on
n. 旁观者, 袖手旁观者
1. The onlooker watched the street performance with great interest.
旁观者对街头表演充满了兴趣。
2. Many onlookers gathered to see the car accident.
许多旁观者聚集在一起观看汽车事故。
3. An onlooker captured the moment on video.
一位旁观者用视频记录下了这一时刻。