cornerstone

n.1.墙角石;奠基石;2.基础

coriander, coring bit, Corinthian, cork, corkage, corked, corkscrew, corm, cormorant, corn, corn on the cob, corn pone (US also pone), corn-cob, corn-exchange, cornea, corneal, corned, cornelian, corner, corner-stone, cornet, cornfield, cornflakes, cornflour (US `cornstarch), cornflower, cornice, Cornish, Cornish pasty, cornstarch, cornucopia, corny, corolla, corollary, corona, coronary, coronation, coroner, coroner's inquest, coronet, Corp,