english
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general::
Phrase(s): a two-edged sword [and] a double-edged sword Fig. something that offers both a good and bad consequence. • The ability to get your insurance to pay for it is a doubleedged sword. They may raise your rates. • Her authority in the company is a two-edged sword. She makes more enemies than allies.
McGrawhill's American Idioms And Phrasal Verbs