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.

He has risen in social standing.

I am surprised at the quickness of this project's progress.

Earth science is an important field of study for unraveling the mysteries of nature.

He is a world-renowned researcher.

When the earthquake occurred, he took emergency measures.

He decided to suspend his studies for health reasons.

Due to the impact of the new coronavirus, our store will be temporarily closed.