a tennis court的用法和样例：
- They marked out a tennis court on the lawn.
- The back line at each end of a tennis court.
- The room Jacques and I occupied, though large, was dwarfed by an immense feather bed. It was a bed to end all beds, almost as big as a tennis court and as thick as a bale of hay.
- Its compact grounds contain a tennis court and a croquet lawn.
- All told,an area about the size of a tennis court was excavated.