视力的英文：
vision

Lose one's eyesight
失去视力

Having minimal vision.
视力极差的有微弱视力的

The owl sees best at night.
猫头鹰夜里视力最好。

Near-sightedness is a visual defect.
近视是一个视力缺陷。

Darkness would make him more appreciative of sight.
黑暗会使他更加珍惜视力。

A defect of vision prevented him from focusing accurately.
视力上的缺陷使他不能准确对焦。

A defect of vision prevented him from focusing accurately
视力缺陷使他眼睛无法准确聚焦。

Poor eyesight will incapacitate you for a job in the library.
视力差将使你不适合于在图书馆工作。

Disorders affecting the retina or the macula in its centre decrease vision and can cause blindness.
影响视网膜和中心黄斑的病变会减退视力并可导致眼盲。

Darkness would make him more appreciative of sight; silence would tech him the joys of sound.
黑暗会使他更珍惜视力，寂静会教导他享受声音。

vision transmitter
图像发射机

vision amplifier
图像放大器

His vision is impaired.
他的视力减退了。

This drug will sharpen your vision.
这药会提高你的视力。

Vision and hearing are exteroceptive senses.
视觉与听觉都是感受外界刺激的官能。