My new four-wheeled vehicle is very fast.

My new bicycle is very fast.

He was working on that project round the clock.

Due to his somnambulism, he may walk around unconsciously in the middle of the night.

He is working round the clock.

The United Nations Security Council plays a crucial role in maintaining world peace and security.

He learned how to operate the anti-tank gun.

His efforts were like a mantis trying to stop a chariot, he couldn't achieve any results.

He is attending school to obtain a motorcycle license.

The United Nations Security Council plays a crucial role in maintaining world peace and security.