He studied for at most one hour.

He is my veteran, and he taught me many things.

Regardless of the size of the problem, we need to solve it.

Boolean algebra is the foundation of logic and computer science.

He is a veteran to me, with a lot of experience and knowledge.

He is highly respected as a military commander.

After listening to his story, I felt his pain for the first time.

I perceived his suffering.

He has a large number of books in his room, exceeding 1000.

Ah, it seems like I left something behind.