Usually there is only one or two a year bright enough to be seen with the naked eye.
通常，一年只有一到两颗彗星明亮得肉眼可见。
Most stars are not visible to the naked eye.
大多数星星肉眼看不见。
They look like stars to the naked eye.
用肉眼看上去它们像星星。
All are clearly visibly different to the naked eye.
这些不同全部都是肉眼可见。
Scientists said the eclipse could be safely observed with the naked eye.
科学家表示本次月食裸眼观测是安全的。
"You can't see it with the naked eye, but a computer can," she says.
“这用肉眼是看不见的，但是计算机却可以，”她说。
Its movement - an inch every minute - could be seen with the naked eye.
它每分钟移动一英寸，用肉眼就能看到。
Unfortunately, with the naked eye it's hard to see exactly what makes them messy.
不幸的是，肉眼很难看出到底是什么搅乱了它们。
The light we emit is about 1000 times lower than the naked eye can see.
我们身体所发的光比肉眼能见的低1000倍。
The microscope enables us to see organisms invisible to the naked eye.
显微镜使我们能看到肉眼看不见的有机组织。
Some of these fragments can be read with the naked eye.
其中的部分的碎片是可以用肉眼阅读的。
The ova are suspended in a liquid, invisible to the naked eye.
肉眼不可见的ova被混悬在液体中， “是没有味道，而且也感觉不到的”， Weinstock博士说。
The photos are not nearly as clear as my naked eye view.
这些照片和我的肉眼看到的几乎一样。
Only with the heart to see clearly, the essence is the naked eye cannot see what is truly important.
只有用心灵才能看得清事物本质，真正重要的东西是肉眼无法看见的。
To see only the heart can see, is invisible to the naked eye the important stuff.
看东西只有用心才能看得见，肉眼是看不见重要的东西的。
It is invisible to the naked eye.
那是肉眼看不见的。
The planet should be visible with the naked eye.
这颗行星肉眼就能看见。
Germs are invisible to the naked eye.
细菌用肉眼看不见。
And the contestants will be too small to see with the naked eye.
并且，参赛者也会因过于细小而肉眼无法看到。
This scene you could only see with the naked eye.
这种风景只能用肉眼看见。
With the naked eye has not until the presence of ice.
直至用肉眼已不到冰晶的存在。
And its greenish blue glow may be visible to the naked eye.
可能用肉眼就能看到它绿蓝色的辉光。
Most comets are so dim that they cannot be seen by the naked eye.
大多数慧星都很暗，肉眼是看不见的。
You can see it with the naked eye.
你可以用肉眼看见。
The star is visible to the naked eye.
这颗星星肉眼可以看见。
Microbes is too small to is see by the naked eye.
微生物很小，肉眼看不见。
Color is something you can see straight away with the naked eye.
颜色是你直接用肉眼能看见的东西。
Some stars are invisible to the naked eye.
有些星体肉眼是看不见的。
Can one see beyond white clouds With the naked eye?
凡人肉眼能看穿白云吗？
Can one see beyond white clouds With the naked eye?
凡人肉眼能看穿白云吗？
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