Ball pump
01
球泵, 球类打气筒
a device used to inflate sports balls, such as soccer balls and basketballs, by forcing air into them
例子
Do n't forget to pack the ball pump for practice today.
别忘了为今天的练习带上球泵。
The coach lent me his ball pump to inflate the volleyball before the game.
教练在比赛前借给我他的球泵给排球充气。
