Prevent Defense
Prevent defense is an American football defensive alignment that uses seven or more defensive backs or players in a defensive back role, the goal of which is to prevent the opposing offense from completing a long pass. This defense is frequently used in obvious passing situations, such as a third-and-very-long situation, or to prevent a long score on the last play of a half, or when the defense believes that the offense must pass (for example, if the offense is trailing late in a game).
网络释义
短语
Self-defense to prevent terrorism反恐自卫
专业释义
英英释义
英汉双解大词典