rén / yǎn / de / jīng / zhuàng / tǐ / huì / gēn / jù / jù / lí / gǎi / biàn / xíng / zhuàng / cóng / ér / bāng / zhù / wǒ / men / kàn / qīng / wù / tǐ

人眼的晶状体会根据距离改变形状，从而帮助我们看清物体。

The lens of the human eye changes shape according to distance, helping us see objects clearly.