My nation is Japan.

In this company, he is in the lowest of the low positions.

Changes in the social system inevitably occur with time.

Slavery is something that robs human dignity and is absolutely unacceptable.

Feudalism characterized the social system of medieval Europe.

It is important to understand the importance of health.

He came down the stairs.

I enjoyed a date with him under the cherry blossoms at night.

He performs best under pressure.

He put the book on the lower shelf.