He tried to change the past by time traveling.

Could you attend the meeting on my behalf?

Do you need a plastic bag?

He was half dead from fatigue.

My coat is in the cloakroom.

In my new project, I am using a microcomputer.

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.

I enjoyed the beautiful rural scenery while walking along the ridge.

His grandfather died of Creutzfeldt-Jakob disease.

Chlorofluoromethane is one of the substances that contribute to the destruction of the ozone layer.