the open air

例句：

1. 1. The children enjoyed playing in theopen air.
   孩子们喜欢在户外玩耍。
2. 2. Thefarmer needs to breathe in the open airto stay healthy.
   农民需要呼吸新鲜空气以保持健康。
3. 3. The park is a greatplace to enjoy the open air and exercise.
   公园是享受户外空气和锻炼的好地方。