recreation theory

例句：

1. 1. She enjoys playing tennis as a form of recreation.
   她喜欢打网球作为一种娱乐活动。
2. 2. The park is a popular destination for recreation and relaxation.
   公园是人们进行娱乐和放松的热门场所。
3. 3. Recreational activities are essential for maintaining physical and mental health.
   休闲娱乐活动对于保持身体健康和心理健康至关重要。