讨价还价的定义
bargained for───指望；想以廉价买
bargained on───成交；商定；指望
bargained away───廉价脱手；议价出售
bargained───n.交易；便宜货；契约；vt.（谈价钱后）卖；vi.讨价还价；谈判
bargain bin───折价商品区（非正式）
bargain for───指望；想以廉价买
bargain offer───廉价优待
bargain on───成交；商定；指望
bargain sale───大减价；廉价出售
