defensive back

US /dɪˈfensɪv bæk/
UK /dɪˈfensɪv bæk/
"defensive back" picture
1.

防守后卫, 防守型后卫

a player in American or Canadian football whose main role is to prevent the opposing team from completing passes or making long runs

:
The defensive back intercepted the pass, turning the tide of the game.
防守后卫截断了传球,扭转了比赛的局势。
Good coverage by the defensive backs is crucial for a strong defense.
防守后卫的良好覆盖对于强大的防守至关重要。