平均下来，比我们花在购物、锻炼、烹饪或者开车上面的时间还要多。
That's more, on average, than we spend shopping, exercising, cooking or driving.
在超过六个月的时间里，实验者每天都会有平均20分钟的额外身体锻炼。
Study participants averaged an extra 20 minutes a day of physical activity over six months.
而没有养狗的人平均每周去健身房或外出跑步的锻炼时间只有1小时20分钟。
Those without a dog spend an average of just 1 hour and 20 minutes a week exercising by going to the gym or heading out for a stroll or jog.
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