铁圈球运动

例句：

1. 1. This is a fun activity for kids to play with their friends.
   这是孩子们与朋友玩耍的有趣活动。
2. 2. The children love to play with the iron rings in the park.
   孩子们喜欢在公园里玩铁环。
3. 3.During the winter, people often engage in iron ring sports to stay active.
   冬天，人们经常进行铁环运动以保持活跃。