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。
光传得多快？
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？
Does light travel out in one direction or in all directions?
光是沿着一个方向还是所有方向往外传播的？
So fast does light travel that we can hardly imagine its speed.
光速很快，我们几乎没法想像它的速度。 。
So fast does light travel that we can hardly imagine its speed.
光速很快，我们几乎没法像它的速度。
So So fast does light travel that we can hardly imagine its speed.
光速很快，我们几乎没法想像它的速度。
The speed of light shifts when the light travel through different cells.
光穿过不同的细胞时光速也会变化。
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。
So fast does light travel that it is difficult for us to imagine its speed.
光传播得如此快，我们难以想像其速度。
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。
Want to travel faster than light?
你想飞得比光还快吗？
Travel light (financially) and carry a spare card.
轻装上路(财务)带一张备用银行卡。
必要时轻装上阵。
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。
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。
我喜欢轻装旅行。
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。
Electromagnetic waves travel as fast as light.
电磁波传播的速度和光一样。
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