后卫球员

linebacker

后卫的英语翻译：

full back; fullback; rear guard

球的英语翻译：

ball; globe; orb; sphere; the earth
【医】 ball; balloon; bulb; bulbi; bulbo-; bulbus; globi; globus; glomera
glomus; orb; sphaer-; sphaero-; sphere; sphero-

员的英语翻译：

a person engaged in some field of activity; member