来自vis-,看，面容，词源同visage,visit。引申词义视力的。

1. He has a visual impairment in the right eye.

他右眼视力有损伤。

2. Visitors are shown an audio-visual presen-tation before touring the cellars.

参观酒窖前，游客们先观看了有声的视频介绍。

3. He became famous as an inventor of astonishing visual and aural effects.

他因发明了神奇的视听效果而出名。

4. At the required level of visual verisimilitude, computer animation is costly.

要使电脑动画的视觉效果达到要求的逼真程度，花费会十分昂贵。

5. They marked out the boundaries of our visual universe.

他们标出了我们视觉经验领域的界限。