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单词 rip-rap
释义

rip-rap or riprap /ripˈrap/

noun
  1. Loose broken stones, used to form a foundation on soft ground or under water, or in the construction of revetments and embankments
  2. A foundation formed of these
ORIGIN: From an obs word imit of the sound of repeated blows
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更新时间：2025/12/24 3:08:24