It is dangerous to travel through thick forests.
在密林里边穿行是很危险的。
The campsite moves with you as you travel through the park.
宿营地可以陪伴着你游览整个公园。
They could travel through the air, float in water, and lie dormant for many months.
它们可以在空中飞行，漂浮在水里，还可以休眠好几个月。
We could just travel through space.
我们只需要穿越空间。
Light must travel through a medium.
光必须通过某种介质进行传播。
And overland travel through Iran is risky.
在伊朗的陆路旅行很危险。
We know sound can travel through air.
我们知道声音可以通过空气传播。
I travel through time, I can't control it.
我穿越了时空，我无法控制它。
Sound waves cannot travel through a vacuum.
声波不能在真空中传播。
We can't travel through the forest by road.
我们不能从陆路穿过森林。
I still want to travel through Europe and to Asia.
我一直希望能从欧洲经由亚洲旅行。
Sound waves will not travel through a vacuum.
声波在真空里不能传播。
I still want to travel through Europeto Asia.
我一直希望能从欧洲经由亚洲旅行。
Just how fast does sound travel through the air?
声音在空气中的传播速度究竟有多快？
You can now travel through the underwater world.
现在，您可以穿越海底世界。
Airplanes enable people to travel through the air.
飞机使人们能够在空中旅行。
Nothing can travel through a vacuum faster than light.
在真空中，没有什么东西能比光跑得更快了。
Some people like to travel through unknown territory.
有些人喜欢到无人知的地方去旅行。
I wish I could travel through space like an astronaut.
但愿我能像宇航员那样遨游太空。
Now let us see whether light can travel through water.
现在让我们看看，光是否能通过水传播。
Sound can't travel through a vacuum and space is a vacuum.
声音无法在真空中传播，而太空就是一个真空环境。
It will take you a whole week to travel through the forest.
要穿过这座森林你得花整整一个星期。
Sound is a form of wave energy that can travel through air.
声音其实就是声波，能在空气中行进的声波。
Travel through space to other planets interests many people.
现在很多人对穿越太空去其他星球旅行感兴趣。
That's important to remember as we travel through this life.
记住它，这在我们一生中都很重要。
It provides an alternative path for the blood to travel through.
它提供了一个替代路径的血液旅行。
It is a wonderful experience to travel through the desert by camel.
骑坐骆驼穿越沙漠旅行是一次了不起的体验。
It is a wonderful experience to travel through the desert by camel.
骑坐骆驼穿越沙漠旅行是一次了不起的体验。
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