< Pinyin
The human eye is an organ that reacts to light and has several purposes. As a sense organ, the mammalian eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth. The human eye can distinguish about 10 million colors.
Rén d yaanjing shì duì guāngxiàn yǒu fǎnyìng, bìng yǒu duōzhǒng yòngtú d qìguān. Zuòwéi gǎnguān, bǔrǔdòngwù d yǎnjīng yǒu shìlì. Zài shìwǎngmó d gànxìbāo hé zhuīxìbāo yǒu sècǎi fēnhuà hé shēndù gǎnjué d guānggǎn hé shìjué yìshí. Rén d yǎnjīng néng fēnbiàn yuē 1000 wàn zhǒng yánsè.
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