be made up of (由……组成)be made of

bank note (纸币)bill

bill (账单)check

billiard room(台球室)poolroom〔pool hall〕

billion(万亿)trillion

bin (废纸篓)wastebasket

biscuit(饼干)cookie〔cracker〕

blackboard(黑板)chalkboard

book(预订)reserve

booking office(售票处)ticket office