A2 [ U ] in the US, a game in which players hit a small, hard rubber ball against a wall with their hands（美国的）墙手球（用手把小球击向墙的比赛）

[ U ] a game similar to football, played by hitting a ball with your hands instead of your feet手球（运动）

[ C or U ] in football, the act of touching the ball with your hand or arm（足球运动中的）手球犯规