橄榄球运动
6.American football is the most popular sport in all schools and colleges in the fall.
7.seize and throw down an opponent player, who usually carries the ball, in American football.
8.Its connection with the game of rugby goes back to the late 19th century, when the New Zealand Native Team performed one on an unofficial tour of Britain.
9.a protective covering for the face in such sports as baseball or football or hockey.
10.American football is derived from the English game of rugby, and is entirely different from ordinary football, that is, soccer or association football.
