He couldn't understand her explanation of why he should go to school, either.

The dumb-founded Connell asks what is happening, but does not understand their explanation.

He didn't understand her explanation at all.

I wondered if he understood his own explanation.

"Pack your things," Mandy said as soon as she understood my rushed explanation.

I don't understand their explanation for the price increase.

Yet it turned out I could not even understand the teacher's explanation.

"If you don't know the answer to that already, you're incapable of understanding my explanation."

Nor did I understand her explanation of the birth process by which Manny came into being.

It was hardly likely that Ogilvie would understand my explanation.