用肉眼看上去它们像星星。

They look like stars to the naked eye.

《柯林斯英汉双解大词典》

用肉眼看它将跟满月一样大可以。

It will look as large as the full moon to the naked eye.

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在一千亿个星系中，用肉眼看得见五个。

Five, out of the 100 billion galaxies, with the naked eye.

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这些虫子用肉眼看不见。

The worms cannot be seen by the naked eye.

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有些生物微乎其微，是我们无法用肉眼看到的。

Some are so tiny that we simply can't see them with our own eyes.

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你可以用肉眼看见。

You can see it with the naked eye.

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细菌用肉眼看不见。

Germs are invisible to the naked eye.

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一些时那么的小，以至我们用肉眼看不见它们。

Some are so small that we cannot see them with our eyes.

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肉眼看不见的斑迹可以用一种新技术显现出来。

Marks that are invisible to the eye are made visible by a new technique.

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肉眼看不见的斑迹可以用一种新技术显现出来。

Marks that are invisible to the eye are made visible by a new technique.

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