Average Joe字面意思平凡的Joe，引申为普通人。

【例句】
Don"t expect too much. I just want to be an average Joe.
不要期望太大，我只是想做一个普通人。

Work out just enough to be in slightly better shape than the average Joe.
进行足够的锻炼，保持比普通人更好的身材。