The Earth's gravity pulls us towards the ground.

A healthy diet and moderate exercise help boost immunity.

His ability is a great merit of his success.

Power often changes people.

Despite its size, this ship is floating on the water surface thanks to buoyancy.

Nuclear power is one of the renewable energies.

This car is powered by electricity.

He unified the country by military force.

This project requires a lot of work.

Everyone is attracted to her allure.