Translate the following English sentence to French:
"Portugal Telecom, a public enterprise which has received billions of escudos of public investment, has been partially privatised, which has led to an increase in charges to what are called 'residential users' - the majority of the population - who today face the 'highest charges in Europe' ."
Portugal Telecom, entreprise publique objet d'un investissement public multimilliardaire en escudos, a été partiellement privatisée, ce qui a entraîné une augmentation des tarifs pour les "usagers résidentiels" (la majorité de la population) qui se voient appliquer aujourd'hui les "tarifs les plus chers d'Europe".