four-ball match的用法和样例：
例句
- For those who grew up in a PE era when even the most spontaneous match of tetherball was scrupulously tallied, scoreless play seems downright radical.
对那些在一个连最自发的绳球比赛都要精确记分的体育时代里长大的人来说，不记分的比赛显得完全是激进的。 - However, while the regular polo ball is used, mallets are two meters long because the players are higher off the ground.
象球比赛的用球和马球相似，但由于大象比马要高得多，所以象球球杆比马球的要长，可达两米。
