Translate the following English sentence to French:
"The Commission is committed to a universal postal service, as the European Parliament has shown on several occasions, the postal service is actually, as some speakers have already mentioned, a key factor in social and territorial cohesion."
La Commission s'est, en effet, engagée sur un service postal universel, et le Parlement européen l'a montré à plusieurs reprises, le service postal constitue effectivement, comme l'ont déjà dit certains collègues, un facteur essentiel de cohésion sociale et territoriale.