the most advanced or innovative part of something
самая передовая или инновационная часть чего-то (samaya peredovaya ili innovatsionnaya chast' chego-to)
"This new design is at the cutting edge of architecture."
"Этот новый дизайн находится на передовой архитектуры." (etot novyy dizayn nakhoditsya na **peredovoy** arkhitektury)
to begin again without any advantage or preparation
to be extremely surprised or shocked
situations or decisions that involve a lot of risks but also...
full of energy and not tired
something very frightening or terrifying
completely honest and trustworthy
