如果你在跑步机上跑或使用踩步机，试着看书，你会忘记时间又能燃烧脂肪。
If you're walking on a treadmill or using a stair-climbing machine, try reading so you lose track of the minutes while you're burning calories.
如果你在跑步机上跑或使用踩步机，试着看书，你会忘记时间又能燃烧脂肪。
If you're walking on a treadmill or using a stair-climbing machine, try reading so you lose track of the minutes while you're burning calories.
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