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gnaw away at sth

phrasal verb with gnaw
 
/nɔː/
 
US  /nɑː/ verb [I + prep, T]

Definition

to gradually reduce or spoil something: Bad debts are continuing to gnaw away at the bank's profits.Damaging and spoilingDestroying and demolishing
(Definition of gnaw away at sth from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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