短语词组短語The river of sand 流沙河river r sand 河拎沙ground river -sand 磨細河砂river terrace sand 河坡沙River Channel Sand Body 河道砂躰river mouth sand 河口砂river course sand 河道砂躰river mouth sand bars 河口砂垻river channel sand bodies 河道砂躰 返回 river sand