Polytetrafluoroethylene is a very slippery material.

The Mesolithic is the era between the Paleolithic and the Neolithic.

A terrestrial planet may have an environment similar to Earth.

I think we should try a different method.

I'm in the middle of a conversation, so please wait a moment.

I love the taste of shiitake.

It is said that the shisa in Okinawa ward off evil spirits.

Takashi is a boy with excellent grades.

He bought six apples.

He prostrated before the king to show respect.