这个海军基地位于海岸线上，具有战略意义。

The ___naval base is strategically located on the coast.

他担任海军军官超过二十年。

He served as a ___naval officer for over twenty years.

无可争议的是，海军区域经常被当局忽视。

It is irrefutable that ___naval areas are often neglected by authorities.