Humans have trichromatic vision, meaning we have three cone cells in our retinas, each which are sensitive to different wavelengths of light: blue, green or red.

人类具有视觉，这意味着我们的视网膜有个锥形细胞，每个细胞对长的光敏感：分别是蓝，绿或红。

Humans have trichromatic vision, meaning we have three cone cells in our retinas, each which are sensitive to different wavelengths of light; blue, green or red.

人类具有视觉， 这意味着我们的视网膜有个视锥细胞，每个视锥细胞对长的光敏感； 蓝、绿或红。