to introduce changes gradually over time
introduire des changements progressivement au fil du temps (introduire des changements progressivement au fil du temps)
"The administration plans to phase in reforms in the tax system."
"L'administration prévoit d'introduire des réformes progressivement dans le système fiscal." (L'administration prévoit d'introduire des réformes progressivement dans le système fiscal.)
to continue waiting for something you want; to resist giving...
to obey the rules you set for yourself
to fail to take advantage of an opportunity
to reduce the differences between two groups or ideas
to become successful; to achieve something desired
to support or approve of something