His actions are as meaningless as a rotten wood and dung wall.

In the Northern Hemisphere, summer is from June to August.

It is currently summer in the Southern Hemisphere.

He is spending a lot of time on experimental research.

My salary is paid once a month.

My monthly income is 300,000 yen.

The power supply in this area is stable.

We took a one-hour rest.

My brother is a graduate student at the University of Tokyo.

He is participating in an elementary level Japanese class.