buy at 以…换得

buy at low prices 低价购买

buy at retail 零买

buy at second-hand 买二手货

buy by the box 论盒买

buy by the pound 按磅买

buy by weight 论重量买

buy for a song 便宜买下

buy for account 赊购

buy for cash 用现金买

buy for one's own use 买给自己用

buy for two yuan 花2元钱买的

buy from 从…购买

buy into 买进…的股份,成为…的股东

buy on credit 赊买

buy with money 用金钱买