| 释义 | 
		rough·age \-fij, -fēj\ noun (-s) Etymology: rough (I) + -age 1.  : coarse bulky food for domestic animals that is relatively high in fiber and low in digestible nutrients (as bran, hay, silage) : coarse fodder — opposed to concentrate; compare fodder 2 2.   a.  : food for humans with a considerable proportion of indigestible material that by its bulk stimulates the intestines to peristalsis  b.  : the indigestible material taken in by humans as bulk; especially  : cellulose |