n.倾泻；小瀑布，瀑布状物；串联；vi.流注；大量落下； 变形： 复数：cascades过去式：cascaded过去分词：cascaded现在分词：cascading第三人称单数：cascades 英英释义： cascaden.a small waterfall or series of small waterfallsa succession of stages or operations or processes or units"progressing in severity as though a