Some midfielders play deep, having a more defensive role, while others go forward.一些中场队员在己方后场运球，兼具防守功能，另一些的位置则更靠前场。The number of blue-on-blue deaths has risen steadily during the present campaign. 在正在进行的战役中，因为己方误伤而导致死亡的人数直线上升。The troops were forced to withdraw to their own borders.部队被迫撤回到己方边境。