broken ball

基本解释

There were sections of very large, sharp-edged broken rock, golf ball-sized and larger.
有部分非常大，锋利的碎石，高尔夫球大小和更大。
The results show that the original crack is brought by high welding heat, which can cause the broken of ball valve.
结果表明，焊接时输入热量过高产生的原始裂纹是球阀断裂的主要原因。
rjggy.net
In the other, a young boy suffered a broken arm when the ball he was in fell out of a shallow above-ground pool and landed on the hard ground.
另一起事故中，水上步行球从地上浅水池中滚出来，掉到坚硬的地面上，球里的小男孩把胳膊摔断了。