名词短语
中文翻译：单步跑
同义词：
['single step', 'single-step', 'single-steprun']
例句：
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1. The marathonrunner took a single-step tothe finish line.
马拉松选手迈出了一步，走到了终点线。
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2. After the race,he took a single-step back tohis car.
赛后，他迈着单步回到了他的车旁。
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3. Thedog ran around the parkfor a single-step beforeit tired.
这只狗在公园里跑了几步就累了。