后卫的英文：
(n) backfield
fullback
rear guard
参考例句：
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He is thrusting down the middle and dribbling past a fullback.
他带球中路突破晃过了一名后卫。
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A quick pass to a back running toward the sideline.
向朝边线跑的后卫传的一种快传球
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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。
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There are also three lines on the flank facing south, north and west and the rear guards.
另有面南、面北、面西而立的三列横队为侧翼和后卫部队
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Hey, what's wrong with the full-backs on the visiting side?
嗨，客队的后卫怎么啦?
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Smith will play fullback.
史密斯将任后卫。
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Jack is a full back of the team.
杰克是球队的后卫队员。
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The full-back brought him crashing to the ground,ie caused him to fall heavily.
后卫把他倒在地.
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an all - American fullback.
全美最佳后卫
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John plays back in the team.
约翰在这个队打后卫。
backfield是什么意思：
n. 后卫;外野手
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An offensive backfield player whose position is behind the quarterback and halfbacks and who primarily performs offensive blocking and line plunges.
进攻后卫位于四分卫和中卫之后的在守卫区进攻的队员，主要在对方守区内拦球和越过对方开球线。
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The backfield player whose position is behind the line of scrimmage and who usually calls the signals for the plays.
四分卫后场运动员，位置在开球线后面，通常为比赛发号指令
fullback是什么意思：
n. 后卫
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He's beaten the fullback and is racing towards the goal
他冲过了后卫，而且直奔球门。
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He is thrusting down the middle and dribbling past a fullback.
他带球中路突破晃过了一名后卫。
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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。
rear是什么意思：
n. 后方；后部，背面；臀部
adj. 后面的；后部的
v. 饲养；培养；暴跳；树立；高耸；抬起
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The rear sight of a firearm.
枪的表尺，后瞄准器 。
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The hen rears her brood.
母鸡孵育一窝鸡雏。
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The horse kicked him in the rear.
马蹄踢在他的屁股上。
