名词
中文翻译：踏步板
同义词：
['step board', 'treadmill', 'exercise board']
例句：
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1.The gym has a treadboard for the cardio machines.
健身房有一台踏步机。
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2.She was on the treadboard for hours, sweating profusely.
她一直在踏步机上锻炼了几个小时，汗水淋漓。
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3. The treadboard is designed to simulate walking on uneven terrain.
踏步机的设计是为了模拟在不平坦地形上的行走。