lens

透镜, 镜头, 镜片, 晶状体

a transparent optical device used to converge or diverge transmitted light and to form images; genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils; (metaphor) a channel through which something can be seen or understood; biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina

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