C 0 c5 e1 D0 \9 W
to always kow about the most recent changes or developments in a particular situation or activity.' ?. D7 N7 }( h3 H2 a5 ^. `5 u
e.g.' T* s* p% d- m/ O7 o9 {/ m* n; C
people with their finger on the pulse of fashion and pop culture.