I have been to Blagoveshchensk.

He explored the deep sea with a bathyscaphe.

He is a person with a strong heart.

He keeps the words 'Don't hesitate to correct your mistakes when you make them' in his heart, always striving for self-improvement.

This food always smells good.

The United Nations Environment Programme is providing solutions to global environmental problems.

I bought a new costume for Halloween.

The phone rang in the middle of the night.

Polytetrafluoroethylene is a very slippery material.

He said, 'It's difficult to make a life,' explaining the phrase 'When a man steps over the threshold, he has seven enemies.'