I think a lot of people have trouble understanding that.

I'd known him for years and still had trouble understanding his French.

"I have trouble understanding a lot of what you're saying."

He had rarely seen her having trouble understanding the nature of a problem.

But athletes have a lot of trouble understanding other people, I think.

I had trouble understanding the technical language in the book.

I'd had no trouble understanding him then, but here he was speaking too fast for me to pick up every word.

Perhaps that's why she has trouble understanding the concept of four different face products.

He spoke no English and had trouble understanding the doctors.

I mean, no one had any trouble understanding his attraction to her.