el cristalino 用英语:

With good cameras you can use different lenses, e.g. a wide-angle lens.

She's got very bad eyes and needs glasses with powerful lenses.

I'm looking for my contact lens.

contact lenses

Through the lens the image was inverted.

You have a lens in each of the eyes.

I see badly therefore I wear lens

a colorless, transparent structure - the crystalline lens

She's got a camera with a telescopic lens.

Newton investigated how lenses transmit light.

It is a convex shaped disc held in place ciliary muscles they relax and contract to change the shape of the lens

Don’t forget to cover the lens when you are not using the camera.

look through the lens

The lenses follow the direction the car goes.

I think it would have been a better shoot with a 10mm lens.