beat on
动词- To talk at length; to go on and on; to rant or expound. · She's beating on about poor service.
- To criticize, impugn or shed a bad light on (a group or topic) for political gain. · She's unpopular enough that photos of her are used in elections to beat on liberal candidates.· You guys are always beating on immigration, but it won't win you this election.
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Beat on window ledges.
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