everybody是每个人的意思。
单数。everybody的意思是各位、每人、人人、大伙儿。
复合不定代词（everyone,everybody, no one, nobody, someone, somebody, something, everything, nothing, anything等等）作主语时，谓语动词用单数。
双语例句
1、Everybody, this is my girlfriend Sally.
各位，这是我女朋友萨利。
2、The heavy rain affected everybody in the area.
大雨影响了该地区的所有人。
3、Everybody is an independent individual and does not have to be gregarious.
每个人都是一个独立的个体，不必非要合群。