keep after

keep after idiom
Make a persistent effort regarding; also, persistently urge someone to do something. For example, We'll have to keep after the cobwebs, or He won't get anything done unless you keep after him. Also see keep at, def. 2.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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