How can Amazon deliver your toothpaste with a drone if it has to stay within eyeshot of a pilot?

如果无人机不飞入飞行员视线之内，亚马逊还如何用无人机配送膏？

A study by the University of Texas has suggested that just having a smartphone within eyeshot can reduce productivity, slow down response speed and reduce grades, as the eyes of the students keep being drawn away from their work.

德克萨斯大学一项研究表明， 仅仅将智手机放在视线范围内会降低工作效率， 降低响应速度并降低，为学生眼睛不断从他们工作上移开。

Like he was there, just out of eyeshot or something.

好像他就在这里 只不过我们看不见。

Just four years ago, the Grizzly Creek Fire burned thousands of acres within eyeshot of the park.

就在四年前，灰熊溪火灾烧毁了公园视野范围内数千英亩土地。