He wrote the original plan for this movie.

A nuclear submarine can travel underwater for a long time.

I have been to Thuringia.

He was dragging the heavy luggage.

Please tell me the International Standard Book Number of this book.

Please open the door.

Our company has developed a new logo to strengthen our corporate identity.

He edited the photo using superimpose technology.

An intercontinental ballistic missile is a weapon with a very large destructive power.

Functional analysis is a branch of mathematics that studies the properties of functions in infinite-dimensional spaces.