beat the bushes
动词 v.
英文释义
动词 v.
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Synonym of pound the pavement (“to campaign diligently; to seek something”).
— They started beating the bushes in search of a commercially available solvent that would aid their manufacturing but wouldn't be too horribly toxic and wouldn't cost an arm and a leg.
词源
Both beat the bushes and scare up have figurative senses, referring to traversing the landscape seeking difficult-to-find things, that arose by extension from their senses referring to driving game out of the bush when hunting.
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数据来源: Wiktionary