如果每天骑自行车可以让你更健康，为什么不承诺每天坚持骑车，过上更健康的生活呢？
If cycling each day can make you healthier, why not commit yourself to it and have a better life?
既然你可以驾车，或者更好一点，坐飞机，为什么还要骑几百英里的自行车？
Why ride hundreds of miles on a bicycle when you can drive in a car, or better yet fly in a plane?
我猜骑自行车出去是不可能了，那我们可以在室内做些什么呢？
I guess riding is out of the question, any ideas of what we can do inside?
我猜骑自行车出去是不可能了，那我们可以在室内做些什么呢？
I guess riding is out of the question, any ideas of what we can do inside?
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