| 1. | Immediately behind the iris is the crystalline lens .
紧靠着虹膜后面的是水晶体（眼球）。 |
| 2. | The fine focusing or accommodation of the human eye is a function performed by the crystalline lens .
人眼的精细聚焦或调节的功能是由水晶体执行的。 |
| 3. | Immediately behind the iris is the crystalline lens
紧靠着虹膜后面的是水晶体（眼球） 。 |
| 4. | Today ' s artificial lenses eliminate any need for glasses
而今日的人工水晶体甚至不需要镜片。 |
| 5. | The lens of the eye is the only transparent tissue in the human body
眼球中的水晶体，是人体唯一的透明组织。 |
| 6. | In this operation the surgeons implant a new lens ( in the eye )
医生在这次手术中给病人（眼球）植入了新的水晶体 |
| 7. | The lens comprises about 1 , 000 layers of perfectly clear , living cells
水晶体则由约1000层完全透明的活细胞组成。 |
| 8. | The eye ' s lens is a biological marvel , being at once dense , flexible and clear
水晶体是生物上的奇迹，集密度、弹性与透明于一身。 |
| 9. | It gathers light and captures images from the lens , much like film in a camera
它从同相机胶片差不多的水晶体聚集光线、捕获影像。 |
| 10. | It gathers light and captures images from the lens , much like film in a camera
它聚集光线，获得来自水晶体的图像，很像摄影机拍出的电影。 |
