Yu is not only his name, but also represents the courage that always exists in his heart.

The number of nuclear-armed countries is increasing worldwide.

Universal gravitation affects all objects on Earth.

Could you tell me your postal code?

This eigenfunction is one of the fundamental concepts of quantum mechanics.

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

We are planning to go to the amusement park this weekend.

He said, 'Misery of life starts at literacy,' and spoke about the hardships of learning.

I maintain my health by doing aerobic exercises every day.

I am planning to travel to the Chugoku region next week.