Walking, done in the right way, is a form of aerobic exercise.

走路方法得当的话是一种有氧锻炼。

《柯林斯英汉双解大词典》

In conclusion, walking is a cheap, safe, enjoyable, and readily available form of exercise.

综上所述，散步是一种廉价、安全、有趣而又随时可以开展的运动形式。

《柯林斯英汉双解大词典》

If you want to get some easy exercise, walking is good for you.

如果你想做一些简单的锻炼，散步很适合你。

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Greater Manchester Police said people should exercise caution while walking their dogs in the area near the reservoir and report any suspicious packages.

BBC: Patch

Simply doing aerobic exercise such as walking or light treadmill workouts will not be adequate to preserve muscle tone, bone health, balance and posture.

FORBES: Why Strength Training May Help You Live Longer

Employees who fail to meet this BMI target would still get the reward if they participate in a walking exercise program of 150 minutes per week.

FORBES: Employers: Get Fiscally Fit with Wellness Programs