alternation theory

例句：

1. 1. The two teams will play alternation games to decide the winner.
   两队将进行交替比赛来决定赢家。
2. 2.The weather changes rapidly during the day, causing alternations in temperature.
   天气在一天中迅速变化，导致温度的交替变化。
3. 3.The company's strategy involves alternation between different product lines.
   该公司的战略是在不同产品线之间交替使用。