Tetsukan is my best friend.

We should not tread the same path as the past.

I commute by subway every day.

His clear and penetrating thought greatly contributed to problem solving.

His explanation was perfectly clear.

This gate is made of wrought iron.

This pig iron is of high quality and is ideal for steel production.

He likes to take a walk in the park at dusk.

He is a world-famous philosopher.

Will you marry me?