短語(yǔ)詞組短語(yǔ)thick -alluvium 厚沖積層thick over alluvium 特厚表土extremely thick alluvium 巨厚沖積層special thick alluvium 特厚沖積層thick and deep alluvium 深厚表土deep and thick alluvium 深厚沖積層deep thick alluvium 深厚沖積層profound and thick alluvium 深厚沖積層thick alluvium covered area 沖積覆蓋層 返回 thick alluvium