英语词汇clean up的起源、历史背景-英语词源词典

clean up. In the early 19th century, American farmers used the expression to clean up as a synonym for gathering the har- vest, stripping all the grain from a field. However, this doesn’t appear to be the source when the expression means “to make an exceptional financial success,” a “big haul.” In this sense clean up came into the language after the gold strikes toward the end of the 19th century. It apparently derives from the min- ing term clean-up, which describes the process of separating gold from the gravel and rock that collected in the sluices or at the stamping mill.

词汇	clean up
词源	clean up. In the early 19th century, American farmers used the expression to clean up as a synonym for gathering the har- vest, stripping all the grain from a field. However, this doesn’t appear to be the source when the expression means “to make an exceptional financial success,” a “big haul.” In this sense clean up came into the language after the gold strikes toward the end of the 19th century. It apparently derives from the min- ing term clean-up, which describes the process of separating gold from the gravel and rock that collected in the sluices or at the stamping mill.
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