重复上述的间隔10-15分钟，然后步行10分钟放松一下。
Repeat these intervals for 10-15 minutes, then do a 10-minute walking cool down.
如果你想对跑步和步行的间隔计时的话，你可以用一个手表或者其他能够发出哔哔声信号的设备当你需要转换的时候。
If you want to time your running and walking intervals, you can use a watch or other device that beeps to signal when you need to switch.
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