the act of directing a ship, aircraft, etc. from one place to another, or the science of finding a way from one place to another

In the past, navigation depended on a knowledge of the positions of the stars. 过去，导航在很大程度上依靠对星星位置的认识。

Mechanics discovered problems with the plane's navigation system. 机械师发现了飞机导航系统所出的问题。

the act of moving around a website or computer screen, or between websites or screens

We have streamlined our website for easier navigation. 我们整理了网站，让浏览更顺畅。