n. the person who plays that position on a football team
n. (American football) a position on the line of scrimmage
n. (American football) grasping an opposing player with the intention of stopping by throwing to the ground
v. seize and throw down an opponent player, who usually carries the ball
n. 工具, 复滑车, 滑车, 装备, 扭倒
vt. 固定, 处理, 抓住
vi. 扭倒