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BNC: 47976 COCA: 44440

alluvium

noun
/əˈluːviəm/
/əˈluːviəm/
[uncountable] (geology地质学)
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  1. sand and earth that is left by rivers or floods冲积层;冲积物
    Word Originmid 17th cent.: Latin, neuter of alluvius ‘washed against’, from ad- ‘towards’ + luere ‘to wash’.
BNC: 47976 COCA: 44440
BNC: 47976 COCA: 44440
BNC: 47976 COCA: 44440
alluvium
Soil and earth: alluvium, clay, clod...

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