to understand or solve the real cause of something
comprendre ou résoudre la véritable cause de quelque chose (comprendre ou resoudre la veritable cause de quelque chose)
"We need to get to the bottom of this issue to prevent it from happening again."
"Nous devons comprendre la véritable cause de ce problème pour éviter qu'il ne se reproduise." (nous devons comprendre la veritable cause de ce probleme pour eviter quil ne se reproduise)
I believe that; expressing a firm opinion
to have confidence in someone or something
to tell the truth about something you have been hiding
to punish someone without legal authority
to impress or surprise someone greatly
to lose consciousness temporarily