at the forefront of innovation or technology
à la pointe de l'innovation ou de la technologie (a la pointe de l'innovation ou de la technologie)
"The laboratory is on the cutting edge of artificial intelligence research."
"Le laboratoire est à la pointe de la recherche en intelligence artificielle." (Le laboratoire est a la pointe de la recherche en intelligence artificielle)
to deal with a problem when it happens, not before
to go out on patrol or begin a search for a suspect
to be responsible for a mistake or bad situation.
to be declared completely healthy by a doctor
a place where powerful people make decisions secretly
working closely and harmoniously together