了解几条比赛规则~~~求教

arieszza

看比赛中遇到几个不常见的规则不太明白：

Intentional Grounding，比赛出现这种犯规时，解说会沿着进攻线的边缘画出两条线，并说四分卫越过了这条线，传球没有越过进攻线等等，这个规则具体是怎样规定的？

另外对进攻中出界的非持球球员有什么限制，出界再回到场地中的球员不能成为第一个触球的人吗？

在Punt中punt team的球员将飞行中的球打回界内后不能成为第一接触球的人吗？

arieszza

呵呵，找到了：
Intentional Grounding of Forward Pass
Intentional grounding of a forward pass is a foul: loss of down and 10 yards from previous spot if passer is in the field of play or loss of down at the spot of the foul if it occurs more than 10 yards behind the line or safety if passer is in his own end zone when ball is released.
Intentional grounding will be called when a passer, facing an imminent loss of yardage due to pressure from the defense, throws a forward pass without a realistic chance of completion.
Intentional grounding will not be called when a passer, while out of the pocket and facing an imminent loss of yardage, throws a pass that lands at or beyond the line of scrimmage, even if no offensive player(s) have a realistic chance to catch the ball (including if the ball lands out of bounds over the sideline or end line).

kcl0801

Intentional Grounding
四分衛在非移動的情況下因為將被sack而亂傳球
結果傳到沒有半個己方可接球員的地方而觸地或出界
就會被判罰
但如果是在移動中就不會被判罰
而四分衛不能超過起攻線(line of scrimmage)才傳球