必要时轻装上阵。
What does "travel light" mean?
“轻便旅行”是什么意思？
他喜欢轻装旅行。
Plane passengers must travel light.
坐飞机旅行必须行李轻便。
我喜欢轻装旅行。
我总是轻装旅行。
It is not much, but you must travel light.
东西不多，可你必须轻装上路。
Travel light (financially) and carry a spare card.
轻装上路(财务)带一张备用银行卡。
If you plan to visit many different places, you should travel light.
如果你计画要到很多不同的地方旅游，你应该要轻装旅行。
When the Cossacks are chasing you around Europe you need to travel light.
当哥萨克人追着你满欧洲跑的时候，你需要轻装上路。
According to the theory of relativity, nothing can travel faster than light.
根据相对论，任何东西都无法超越光速。
Does light travel in all directions?
光是向每个方向传播的吗？
This bag foreran the duffel bag for light travel to keep necessities in.
放在行李包前的包是用来放必需品的。
Want to travel faster than light?
你想飞得比光还快吗？
It's a small travel bag. It's light brown.
是一个茶色小旅行袋。
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。
Silk, light and easily rolled up, could travel overland.
丝绸很轻，且易卷，所以可以走陆路运输。
Could wormholes hold the secret to faster-than-light travel?
虫洞是否包含了超光速旅途的奥秘？
In your imagination you can travel anywhere in the speed of light without any obstacles.
在想象中，你可以以光的速度一路顺风地去世界各地旅行。
Electromagnetic waves travel with the speed of light, which is 300,000 kilometers per second.
电磁波，以光速传播，也就是30万公里，每秒。
We can't solve the problem how we can travel faster than light.
我们解决不了如何才能超过光的速度这个问题。
Travel to be happy, must be traveling light.
能快乐旅行的，一定是轻装旅行的人。
So fast does light travel that it is difficult for us to imagine its speed.
光传播得这样快，以致于我们无法想象它的速度。
According to our present ideas of physics, nothing can travel faster than light.
根据我们现在物理学的概念，没有什么东西能超过光速。
With your mind's eye, travel with this light and become its companion.
用你的内心的眼睛，跟随这金光，并成为它的伙伴。
Imagine a rocket that can travel at the rate of light!
想象一下能以光的速度飞行的火箭。
Electromagnetic waves travel as fast as light.
电磁波传播的速度和光一样。
Signals travel at the speed of light.
信号以光的速度传播。
Signals travel at the speed of light.
信号以光的速度传播。
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