He enlisted in the navy.

We decided to rename the company.

He decided to change the name of his company.

He had a dream of becoming a pirate.

The grebe is a beautiful bird that lives by the water.

He is working hard to solve that problem.

Seawater contains salt.

Fishing is prohibited in this area of the sea because it is protected.

We need to ameliorate this system.

This machine needs amelioration.