One well-known example of this is the blind spot in the eye, which is a point in the retina which contains no sensory cells.

有一个好例子是眼睛中的盲点——视网膜中不含感光细胞的点。

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Every morning in May the naked eye will be able to spot Mars, Jupiter, Venus and Mercury, and with a small telescope one can see Uranus and Neptune.

在五月期间，人们每天早晨都可以用肉眼看见火星、木星、金星和水星，用小型望远镜还可以看见天王星和海王星。

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The vertebrate eye - with its back-to-front wiring and blind spot where the wiring goes through the retina - is one example.

脊椎动物的眼睛就是一个例子——其前后颠倒的视路和视路穿过视网膜之处的盲点。

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Almost everything stays at eye level or below, and there are conveyors in only one spot, meaning less machinery that might need attention (and less noise).

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