a football ground的用法和样例：
- Our school has a large football ground.
- Magellan's radar system would be able to penetrate the clouds and raise the veil of Venus, acquiring the most detailed images available so far, the resolving power of which would be enough to reveal any object on Venus the size of a football ground.
- A football field should be level.
- His wish to become a football star has come true.
- The boy traded his knife for a football.
- As a football player, John is second to none.