开球处
1.Throw-off: A throw from the centre line to a team-mate at least three meters away and behind the line, used to restart play.
2.A play in which the defensive team recovers and downs the ball behind its own goal line after the ball has been kicked or passed there by the team on offense. No points are scored, and the ball is put back in play by the recovering team on its own20-yard line.
