egotist
n. 自我中心主義者
An egotist is someone who is egotistic.
1. a conceited and self-centered person
You can characterize his behavior as that of an egotist.
你可以把他的行為歸結為一種自我中心主義行為.
Marian is such an egotist that she talks about herself all the time.
瑪利亞過於以自我為中心,喋喋不休地談論自己.