单词	vallum
释义	vallum /ˈvaləm / noun (In ancient Rome) a defensive wall, rampart, or stockade.There was a ditch on the north side, and a military zone on the south defined by an earthwork called the vallum.... The final addition was the ‘vallum’ to the rear of the wall. A vallum some 27 feet wide and nine feet deep was dug as further protection for the wall. Origin Latin, collective from vallus 'stake, palisade'. Rhymes alum, Calum, mallam
随便看	draught horse draughtily draughtiness draughtproof draughts draughtsman draughtsmanship draughtsperson draughtswoman draughty Drava River Drave Dravidian draw draw a bead on draw a blank draw a line under draw a veil over draw back drawback pyrocarbonate pyrocatechin pyrocatechol pyrocatechuic pyrocellulose

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