free alternation

例句：

1. 1. The team decided to switch to a new strategy in order to achieve better results.
   团队决定切换到新的策略以获得更好的结果。
2. 2. The music was played in a free alternation of rhythms and melodies.
   音乐在节奏和旋律之间自由交替播放。
3. 3. In the free alternation between work and play, he found a balance that suited him well.
   在工作与玩耍的自由交替中，他找到了适合自己的平衡。