At midnight sharp, fireworks covered the concert hall and I, as well as the rest of the spectators, felt the excitement and delight I've never felt before.

spectators 是 spectator 的复数形式。spectator 由词根 spect（看）和后缀 -ator（...的人）组成，字面意思是"观看的人"，即"观众"。 spectators 在这里指"观看烟花表演的观众群体"。