defensive back
US /dɪˈfensɪv bæk/
UK /dɪˈfensɪv bæk/

名词
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
示例:
•
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。
在 Lingoland 学习这个单词