点击下方单词,选择对的这个单词
名词
1. （土壤）冲积的，淤积的Alluvial soils are soils which consist of earth and sand left behind on land which has been flooded or where a river once flowed.
1. of or relating to alluvium
多通过句子记忆单词，而不是单独死记硬背。
