His opinion is very important.

It's difficult to understand his explanation.

He is an expert in law.

This zoo is putting a lot of effort into the protection of endangered species.

He did his best to protect me from danger.

We have obtained the patent rights for the new product.

His explanation was impossible to understand.

It is important to understand the importance of health.

This company strictly adheres to the principle of fair trade.

You can solve the problem by using this method.