Then while the writhing pitcher ground the ball into his hip, Defiance gleamed in Casey's eye, a sneer curled Casey's lip.

VOA: special.2011.04.04

and you've got to hit a ball which is on the ground with a sort of croquet mallets.

你要用一个类似木槌的东西去打击地上的球。

知道马球吗？ - SpeakingMax英语口语达人