He is connected to a ventilator due to his severe condition.

He passed the lie detector test.

He is involved in the research of particle accelerators.

Seismologists use seismographs to accurately measure the magnitude of earthquakes.

He attacked the enemy using a flamethrower.

This filter helps to improve the sound quality.

Kazumi is my best friend.

I have been to Suishiei.

Water Margin is one of the four great literatures of China.

I buy water at the water store every day.