Об­ра­зуй­те от слова PRACTICE од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

In Russia, there are no native words for efficiency, challenge and engagement ring. Of course, every language has areas in which it needs, for ______ purposes, to be more expressive than others.