linebacker

名词 linebacker:

1. a defensive football player who takes a position close behind the linemen
   同义词：line backer
2. the position of a defensive football player who plays close behind the line of scrimmage
   同义词：line backer

1. A new or substitute offensive play called by the quarterback or a defensive formation called by a linebacker at the line of scrimmage as an adjustment to the opposing side's formation.
   改变打法一种在橄榄球争球线上作为就对方阵势的调整，由四分卫发令的新的或替代进攻打法，或由后卫发令的防守阵势

line.back.er

n.Football （名词）【橄榄球】
Any of the defensive players forming a second line of defense behind the ends and tackles.
中后卫：在边线和阻截队员之后形成第二道防线的任一个防守队员

【引伸】
line.back.ing
n.（名词）