Those two would understand each other without too many words.
My father and I understood each other without much need for words.
But I think you can't understand the current racial situation without some understanding of history.
It is not possible to understand outcomes data without all three of these.
Many of these things are not to be understood without instruction.
"I didn't understand that without my vote, the government would fall."
I thought you would understand without the need for words.
But Martinez seemed to understand the whole thing without too much trouble.
We have to understand that without international involvement, Mexico will not win the war.
The reader cannot understand Soviet activities in the third world without some understanding of these changes.