TASK DEFINITION: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
PROBLEM: Amateur radio operators try to talk with as many others as possible .

SOLUTION: Many amateur radio operators participate in radio contests , during which an individual or team of operators typically seek to contact and exchange information with as many other amateur radio stations as possible in a given period of time .

PROBLEM: A voluntary association or union is a group of individuals who voluntarily enter into an agreement to form a body ( or organization ) to work together for a purpose .

SOLUTION: A voluntary group or union ( also sometimes called a voluntary organization , common-interest association , association , or society ) is a group of individuals who enter into an agreement , usually as volunteers , to form a body ( or organization ) to accomplish a purpose .

PROBLEM: The Epstein – Barr virus ( EBV ) , also called human herpesvirus 4 ( HHV-4 ) , is one of eight viruses in the herpes family .

SOLUTION:
The Epstein – Barr virus ( EBV , sometimes abbreviated as EPV ) , formally called Human gammaherpesvirus 4 , is one of eight known human herpesvirus types in the herpes family , and is one of the most common viruses in humans .