A new study shows a relationship between fast walking and life expectancy.
一项新的研究显示了快步走和长寿之间的关系。
If you can't get your heart rate above 120 with fast walking, here is a similar jogging test.
如果你不能通过快走让你的心率超过120,这里还有个相似的慢跑测试。
One effective training program involves just 30 to 60 minutes of fast walking several times a week.
一种有效的锻炼方法是每周数次快走30至60分钟。
He began walking very fast.
他开始箭步向前走。
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