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general::
Phrase(s): change back ((in)to someone or something)
to return to the original form. • The crisis in Congress changed back to a minor matter within a week. • Then Superman changed back into mild-mannered Clark Kent., Phrase(s): change back (from something)
to return to the original form, state, or selection, from some other form, state, or selection. • We are going to change back from our position of last month. • We didn’t like our new plumber, so we changed back.
McGrawhill's American Idioms And Phrasal Verbs