The use of this machine is simple.

This is a kind of flower.

Germanium is a type of semiconductor and is widely used in electronic devices.

Semiconductor technology forms the basis of modern electronic devices.

What is this device used for?

This computer can be used by anyone.

An electron is a part of an atom.

Looking at this vast sea, I feel free.

Hiroshi is my best friend.

This park is very wide.