at the most advanced position in a field
à la position la plus avancée dans un domaine (a la position la plus avancee dans un domaine)
"The lab is at the cutting edge of medical research."
"Le laboratoire est à la pointe de la recherche médicale." (le laboratoire est **a la pointe** de la recherche medicale)
to talk too much and for a long time
Something that is outdated or no longer interesting
practical and realistic
feeling nervous or anxious
to end something; to finish a performance or event
feeling hopeless and defeated