to say something without deep thinking or preparation
dire quelque chose sans réflexion approfondie ni préparation
"I can’t remember the exact number off the top of my head."
"je ne me souviens pas du nombre exact de mémoire"
to reach maturity; to become fully developed
to make a first step towards achieving something, especially...
to take a subordinate role to someone else
to model the behavior you expect from others
to complete a task or promise as planned
to sleep very peacefully and comfortably