alluvial
/əˈluːvɪəl; ə`luvɪəl/ adj [usu attrib 通常作定语] made of sand, earth, etc left by rivers or floods, esp in a delta 冲积的; 淤积的: alluvial deposits/soil/plains 冲积物[土/平原].
/əˈluːvɪəl; ə`luvɪəl/ adj [usu attrib 通常作定语] made of sand, earth, etc left by rivers or floods, esp in a delta 冲积的; 淤积的: alluvial deposits/soil/plains 冲积物[土/平原].
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