The syrinx of birds can produce different sounds depending on the species.

Have you ever seen a trumpeter swan at the lake in the park?

Mizunari is my best friend.

The hours after sunset until midnight are quiet and calm.

The history of Shu is very interesting.

This problem is easy to solve.

Yuko is my best friend, he always helps me.

We are working hard to create a better future.

My father drives a Toyota car.

After the earthquake, there were several aftershocks.