你可以在室内特殊的墙壁上做，也可以在室外真正的山上做。
You can do it indoors on special walls or outdoors on real mountains.
如果我们在室外，要远离坠落物。
如果温度低于0摄氏度，水在室外就会结冰。
If the temperature is below 0℃, water will turn into ice in the open air.
昨天雨下得太大了，我们无法在室外打篮球。
It rained so heavily that we couldn't play basketball outside yesterday.
然而，人类在室内的时间越来越长，在室外的时间越来越短。
However, humans are spending more time inside and less time outside.
塑料制成的东西即使在室外的天气里也能使用大约400年。
Things made of plastic will last about 400 years even if they stay outside in the weather.
我更多的是在室外享受这个练习。
我们将冒天气的险在室外聚会。
We will take a chance on the weather and have the party outdoors.
上图：一月的一个下午，在室外画画。
这是唯一在室外红土场上进行的比赛。
This is the only tie being played outdoors and it is on clay.
在跑步机上跑步与在室外跑步有什么区别？
What's the Difference Between Running on a Treadmill and Running Outside?
在室外使用蜡烛的时候，你总得留意风势。
The thing about candles and being outside is that you always have to keep wind in mind.
在室外，光源来自源于不同的角度，并很亮。
In an outdoor setting, the light source can come from many angles and be very bright.
在室外看星空。
在室外你跑得越快，抵抗风的阻力就越困难。
The faster you run outside, the harder you're working against wind resistance.
如果天色暗时在室外锻炼，则需要穿上可以反光的衣服。
If it's dark when you exercise outside, wear reflective clothing.
卫生间每边的大玻璃让使用者感受到在室外环境的效果。
The bathroom has large windows on either side which has the effect to make residents feel they are in an outdoor environment.
当我开始在室外跑步时，健身房的功效就减半了。
When I started running outside I halved the usefulness of the gym.
问题：在跑步机上跑步与在室外跑步有什么区别？
Question: What's the Difference Between Running on a Treadmill and Running Outside?
试着假装扶手根本不在那儿，就像你在室外跑步。
Try to pretend that the rails are not even there, as if you're running outside.
最有可能的解释是，他在室外待的时间比妻子长。
The most likely explanation is that he spent more time out of the house than his wife.
当然，在室外温度很高的情况下保持水低温不是件容易的事。
Of course, it's not easy to keep your water cold during outdoor runs in the heat.
当你在室外，比如咖啡馆或机场，你怎么获得更好的连接呢？
But what should you do to get a better connection when you're outside, at a coffee shop or an airport?
服刑人员花许多的时间在室外；监狱鼓励体育锻炼。
Prisoners spend a lot of time out of their cells; exercise is encouraged.
如果你在室外跑步，欣赏周围的环境，感激得到与大自然互动的机会。
If you're running outdoors, take in your surroundings and appreciate the opportunity to interact with nature.
我听说在室外跑步比起在跑步机上跑步能消耗更多的卡路里。
I've heard that running outside burns more calories than running on a treadmill.
我听说在室外跑步比起在跑步机上跑步能消耗更多的卡路里。
I've heard that running outside burns more calories than running on a treadmill.
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