bimonthly

a.两月一次的；一月两次的

bill of rights, bill of sale, billabong, billboard, billet, billet-doux, billfold, billhook, billiard-, billiards, billion, billow, billowy, billposter (also billsticker), billy, billy-goat, billy-oh (also billy-o), biltong, bimetallic, bimetallism, bin, binary, binary digit, binary notation system, binary star, bind, binder, bindery, binding, bindweed, bine, binge, bingo, binnacle, binoculars, binomial, biochemical, biochemist, biochemistry, biodegradable,