We haven't seen him once since he left.

I accepted his request.

This is my first time writing a written request.

This book explains in detail about the use of foreign words.

In old Japan, wandering street puppeteers, known as 'kugutsuko', used to roam the towns, entertaining people.

He was highly respected in the village as a puppeteer.

He is a very talented puppeteer.

Historically, she was known as a female kugutsushi.

This music is being played at a volume of 80 phons.

In organic chemistry, sulfone is an important compound.