Which sport is NOT played with a round ball: American Football, baseball or basketball?
Something that is round is shaped like a circle or ball. 圆形的
American football is a unique sport – it is a game about gaining territory as much as it is about scoring points. When two teams step onto a football field, each is battling for every inch it can take from the other. Each team wants to defend the field that is behind it and invade the field in front of it. Ultimately, they want to gain enough ground to score a touchdown or field goal.