The Riemann sum is a method for approximately calculating the integral of a function.

She was spinning thread on a spinning wheel.

This pongee dress is very soft and feels good on the skin.

He said it was hard to bring up Mitsuru.

My great-grandfather was a leading painter in Japan when he was young.

He was hospitalized because of heart failure.

I am single and live alone.

My father had to move away from his family for work.

She is a wonderful nurse.

In this company, being late is not allowed as an unwritten rule.