Г377
стираются/стёрлись грани между кем, между чем
VP subj.usu. this
WO the differences distinguishing, separating two or more groups or phenomena are disappearing: стёрлись грани между Х-ом и Y-ом = the boundaries (boundary lines, distinctions, differences) between x and Y were obliterated (erased, eliminated)
стираются грани между Х-ом и Y-ом - the distinctions (the boundaries) between x and Y are becoming blurred
the line between x and Y is becoming blurredthe boundaries (the differences) between x and Y are melting away.