求翻译：前锋球员比后卫球员要高大威猛些，但是速度慢且失之迅捷 后卫球员的职责，是接到前锋球员拿到的球，争取用冲锋达阵或者射门的方式得分,后卫一般比前锋更为迅捷，但是不及前锋强壮。后卫线上的球员速度必须非常快. 总的来说,橄榄球最主要的条件就是身体强壮,和动作灵活.是什么意思？

Striker tall and mighty than the defender to some, but the loss of slow and fast defender's role is to get the striker received the ball, with a charge for touchdowns scored or shot the way, is more forward than guard the general quick, but not as strong striker. Back line player to be very fast spe

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The vanguard player wants big overwhelming power compared to the fullback player, but the speed slow also loses the fast fullback player's responsibility, receives the ball which the vanguard player attains, strives for reaches the way score with the charge which or shoots, the fullback generally co

Striker player than linebacker to tall and powerful, but slow and Miss player of quick guard duties, is receiving striker player got the ball towards emergency units or shooting scores, Defender generally more rapid than a striker, but less than power forward strong. Players must be very fast on the

Striker tall and mighty than the defender to some, but the loss of slow and fast defender's role is to get the striker received the ball, with a charge for touchdowns scored or shot the way, is more forward than guard the general quick, but not as strong striker. Back line player to be very fast spe