He is suspected of being a member of Al-Qaeda.

He is wearing special shoes to control pronation.

We need new supports to maintain the stability of this building.

In this old document, the archaic word '用ゐる' is used.

This application is very convenient.

You can apply this theory to actual problems.

This app has high practical use.

Yoshiyo is my best friend.

What is this tool used for?

This computer is for the exclusive use of the president.