落槽luò∥cáo 1.河流水位降低,归入河槽。{(of river water) become lower and tamed} 2.〈方dial.〉家道衰落。{(of family fortune) decline} 3.(～ㄦ{luò∥cáor})榫头放入卯眼安好。{rabbet placed well in mortise} 4.〈方dial.〉指心里平静;熨帖{calm; at ease}: 事情没办好,心里总是不～。{As long as the matter remains unsettled, I won't be able to put my mind at rest.}