I do not understand very well where the place was.

"But my type of work is not something you understand very well in America."

They talked to me about things I did not understand very well.

But I can well understand her reasons for doing so.

I have well understood my family's need to live simply, within our means.

The problem situation at hand must be clear and well understood.

The history from the 15th century to the present is well understood.

Thus the control of the process is not well understood.

For who inside the system needs to be told what is well understood?

Why they happen and what to do about them is not well understood.