名词
中文翻译：踏步圈
同义词：
['step circle', 'step ring例句：1. The children are playingin the park with their tread circles.（孩子们在公园里用他们的踏步圈玩耍。）2. The teacher demonstrated how to makea tread circle using a ruler.（老师演示了如何使用直尺制作一个踏步圈。）3. The athletes practiced their tread circles before the competition.（运动员们在比赛前练习他们的踏步圈。）']
例句：
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1. The children are playingin the park with their tread circles.
孩子们在公园里用他们的踏步圈玩耍。
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2. The teacher demonstrated how to makea tread circle using a ruler.
老师演示了如何使用直尺制作一个踏步圈。
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3. The athletes practiced their tread circles before the competition.
运动员们在比赛前练习他们的踏步圈。