详细解释:n. 后卫
英语解释：
名词 fullback:
(football) the running back who plays the fullback position on the offensive teamthe position of a back on a football team动词 fullback:
play the fullback例句：
The quarterback faked to the fullback and handed off to the halfback.四分卫做了个要把球传给后卫的假动作，却把球传给了中卫。