地面球的英文：
ground ball
n. 地面，土地
v. 着陆， 打基础
adj. 磨平的，磨碎的
on solid ground
在稳固的基础上
Their ship was grounded.
他们的船搁浅了。
The ground has thawed.
地面解冻了。
The beans are then ground and packaged for sale as ground coffee.
然后那些咖啡豆被磨碎，包装好作为咖啡粉出售。
He was lying flat on the ground.
他平躺在地上。
n. 球；舞会
v. 成团块；捏成球形
You have no balls!
你们一点胆量都没！
The kitten tangled the ball of yarn.
猫把线团儿弄乱了。
A ball hissed by.
子弹嘶地一声飞过。
The dog had itself a ball.
狗玩得很愉快。
Do you have the balls to challenge authority?
你有挑战权威的胆量么？