The touchstone to see his true character is his reaction when he faces difficulties.

I blushed at her joke.

He blushed with shame.

Her red dress is very bright.

There are many beautiful trees and stones in this park.

This rock has existed for millions of years.

We visited the ancient dolmen.

There is a stone Buddhist image from ancient times in this park.

I take full responsibility for the success of this project.

He is feeling loneliness.