第一，销售人员可以从视觉上判断顾客的需求。

For one, the sales person can visually evaluate the guests needs and wants.

youdao

该激光从视觉上警告海盗不要再继续靠近船只。

The laser provides a visual warning to not come any closer.

youdao

男人必须从视觉上判断一个女人是否可以生育孩子“，费希尔说。”

"Men have to be able to size up a woman visually to see if she can bear babies," says Dr. Fisher.

youdao