alluvial

形容词 alluvial:

1. of or relating to alluvium

1. Bangkok is surrounded by a vast, damp, alluvial plain, crisscrossed by a network of klong.
   曼谷为一个广阔潮湿的冲积平原所环绕，有纵横交错的运河网。
2. Low-lying alluvial land adjacent to a river.
   低洼地，滩地与河流邻接的低洼冲积地带