It's difficult to understand his feelings.

His change of heart changed the entire team's atmosphere.

I was surprised by his novel idea.

His idea had a novelty, and we were excited about it.

He was able to sense the elements of nature.

This is my new project.

We are planning to start a new project.

He always thinks he is sick because of his hypochondria.

Recently, my palpitations have gotten worse due to stress.

The sound was so quiet that I could hardly hear it.