см. концентры.
конце́нтр,
конце́нтры,
конце́нтра,
конце́нтров,
конце́нтру,
конце́нтрам,
конце́нтром,
конце́нтрами,
конце́нтре,
конце́нтрах
"It's easy to make a buck. It's a lot tougher to make a difference." Tom Brokaw
"We are all gifted. That is our inheritance." Ethel Waters
"Fear is the mother of foresight." Thomas Hardy
"Nothing makes one feel so strong as a call for help." Pope Paul VI