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hammer away at

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Keep at something continuously, as in The reporters hammered away at the candidate. This phrase employs hammer in the sense of “beat repeatedly,” a usage dating from the mid-1600s.

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

How to use hammer away at in a sentence

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