铜 (tóng): đồng (hóa học)

The copper wire inside electrical cables conducts electricity easily, so most cables are made of copper.

There is a bronze statue in the park, a sculpture of an ancient scientist.

Copper, as a metal, does not rust easily, so it is often used to make faucets and door handles.

Archaeologists discovered a batch of bronze artifacts at the site, indicating that people at that time had mastered smelting technology.

He gave me a copper commemorative medal with my name engraved on it.