Japan has undergone rapid modernization.

We plan to modernize this old building.

Let's meet at the actual place.

This antigen triggers a specific immune response.

This vaccine contains the antigen of the new coronavirus.

Calls for tax reduction are growing.

We need to find new ways to reduce energy use.

His father is a very stern person.

His sternness can sometimes scare people.

He entered the room with a dignified attitude.