He made a demand to the company for a raise in salary.

She changed her name after getting married, but her maiden name was Tanaka.

He has a brash personality and tends to jump to conclusions quickly.

We were enveloped in deep sorrow due to his sudden death.

He died suddenly at a young age.

The educational methods of schools under the old system were significantly different from those of current schools.

He suddenly developed acute pneumonia.

He is suffering from a subacute illness.

This textbook-style font is easy to read, isn't it?

This government-established textbook is for teaching students about the country's history and culture.