户外跑的时候，无论如何你必须回到你的起点。
When running outdoors, you have to get back to your start destination somehow!
他病后尝试着往户外跑。
在户外跑的时候偶尔遇到这种讨厌的冷嘲热讽的人是不可避免的，尤其是女性跑者。
Dealing with the occasional obnoxious heckler is inevitable when you run outside, especially for female runners.
如果需要的话，你可以在跑步机上跑步。但如果可以的话，最好一个礼拜可以在户外跑一两天。
You can do these runs on a treadmill if necessary, but it would be ideal if you could run outdoors one or two days a week.
走到户外，跑一跑，跳一跳，滑两步，或者假装你在踢球。
Go outside and run around, jump, slide, kick a ball around, pretend.
因为新技术在冬天赛跑衣服，不见了是那每天当经过户外的冬天被沉重地走的跑步者跑穿着许多重又不舒服的衣服的练习。
Because of new technology in winter running clothes, gone are the days when runners trudged through outdoor winter running workouts wearing lots of heavy and uncomfortable clothing.
因为新技术在冬天赛跑衣服，不见了是那每天当经过户外的冬天被沉重地走的跑步者跑穿着许多重又不舒服的衣服的练习。
Because of new technology in winter running clothes, gone are the days when runners trudged through outdoor winter running workouts wearing lots of heavy and uncomfortable clothing.
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