before

prep.&conj.在…以前 ad.以前，从前

beehive, beekeeper, been, beep, beeper, beer, beer-mat, beery, beeswax, beet, Beethoven, beetle, beetling, beetroot, beeves, befall, befit, befitting, befittingly, befog, before long, beforehand, befriend, befuddled, beg, began, beget, beggar, beggar-man, beggarly, beggary, begin, begin to do sth., begin with, beginner, beginning, begone, begonia, begorra, begot, begotten,