He was so profound that it was difficult for us to understand his thoughts.

He has a beneficent heart.

He is a very careful person.

His actions are said to be deeply sinful.

I live in Shenzhen.

Asami is my best friend.

Primitive communism is one of the initial forms of human social organization.

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

The Calopteryx cornelia is a species endemic to Japan, and it has beautiful wings.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.