A metallic bond refers to the strong bond between metal atoms.

This project aims for the combination of science and art.

Metallic bonds are formed by ions floating in a sea of electrons.

He pointed at the location on the map.

This metal is very hard.

He combined two ideas to create a new project.

At the airport, drug dogs are sniffing passengers' luggage.

Please calculate the area of this rectangle.

His language is vulgar, and I don't like it.

Understanding the structure of atoms is a fundamental part of physics.