Click consonants, or 'kyuuchakuon', are often used in African languages.

This engine adopts the air cooling system.

He is a master of unarmed combat.

In this factory, we use compressed air to operate the machines.

I recorded music with my new sound recorder.

He tends to have a dislike for trying new foods that he has not tried before.

I have been to Ningxia.

Natsumiko is my best friend.

When it becomes summertime, the days get longer.

Last summer, I went on a trip abroad.