通航的英文：
navigable

They have to dredge the canal so that ships can use it.
他们须疏浚运河河道轮船方可通航。

"We should speed up the establishment of three direct links of mail, air and shipping services, and trade."
要加速实现两岸直接通邮、通航、通商。

Navigation between tools and menus
在工具和菜单之间导航

Columbus was a famous navigator.
哥伦布是个有名的航海家。

She has trouble navigating the stair.
她上下台阶有困难。

Inflect the interface for typical navigation.
为常见的导航调整界面。

The man is a sixteenth Spanish navigator.
那个人是十六世纪西班牙的航海家。