The Tokyo metropolitan region is the center of Japan's economy.

My mother prepares a traditional Japanese meal every day.

Among polyandrous animals, there are species where one female mates with multiple males.

He is recognized as the top person in that field.

He was deeply grieving the death of his family.

His performance is generally good.

He followed the footprints left on the snow.

He was appointed as the chief executive officer of the company.

Infrared astronomy provides a new perspective on understanding the universe.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.