The destructive power of that hurricane was stronger than anything we could imagine.

Her ability to draw is really amazing.

He encrypted the message using a public key.

He is good at fighting using the Tekkō-kagi.

His father is a very strict person.

During the Yuan dynasty, Chinese culture developed greatly.

This is my original.

Understanding the original principle is important for solving problems.

The budget for this project has been reduced by 20%.

What is the source of this information?