1.When answering this question, you can discuss the different methods and activities that children and older adults can engage in to maintain fitness and health. For children, you might mention activities like playing sports, engaging in outdoor play, and having a balanced diet. 2.For older adults, you could discuss activities such as walking, swimming, yoga, and maintaining a nutritious diet. Additionally, you can talk about the importance of regular health check-ups and mental well-being for both age groups.

1. 在回答这个问题时，你可以讨论儿童和老年人可以参与的不同方法和活动，以维持健康和体能。对于儿童，你可以提到像运动、户外玩耍和均衡饮食这样的活动。 2. 对于老年人，你可以讨论像散步、游泳、瑜伽和保持营养饮食等活动。此外，你还可以谈论定期健康检查和心理健康对这两个年龄组的重要性。