Mr. Kamayatsu is my best friend.

We had a meal in Chinatown over the weekend.

This region is rich in delicacies, which are popular among tourists.

Infix notation is a mathematical notation that places operators between operands.

My younger brother underwent an appendectomy yesterday.

The mesosphere is a part of the Earth's atmosphere.

There is a small bone called the malleus in the ear.

He has a 'morning three, evening four' way of thinking.

You can see the traces of a gall wasp laying eggs on this leaf.

There are a lot of insect galls in the garden.