He is crushed in the backfield and fumbles the ball 他在后场被撞倒了球也脱手了
2.
There ' s a dogpile in the backfield . the refs are trying to sort it out 这可真是成堆了裁判员都有点糊涂了
3.
As a defensive - backfield coach for syracuse university ' s football team , randy edsall spends hours putting x ' s and o ' s on the blackboards and exhorting players in saturday showdowns 艾德沙是雪城大学美式足球队的防守后场教练。在周六的比赛期间，他通常花好几个小时在黑板上讲解战术。
