This species of frog is hermaphroditic, able to change its sex as needed.

The United States has adopted a bicameral system.

We threw a party to celebrate the completion of the project.

The project has successfully completed.

I think this is really a good song.

This is an amphibious vehicle that can be driven on both land and water.

A frog is a type of amphibian.

He resigned because the chess game became difficult.

My husband is a doctor.

It is said that his soul has ascended to heaven.