cascade
英 [kæs'keɪd]
美[kæ'sked]
	    - n. 层叠;小瀑布;喷流
 - vi. 像瀑布般冲下或倾泻
 - v. 使瀑布似地落下
 
英英释意
- 1. a small waterfall or series of small waterfalls
 
- 2. a succession of stages or operations or processes or units;
 - "progressing in severity as though a cascade of genetic damage was occurring"
 - "separation of isotopes by a cascade of processes"
 
- 3. a sudden downpour (as of tears or sparks etc) likened to a rain shower;
 - "a little shower of rose petals"
 - "a sudden cascade of sparks"