买一送一 [词典] buy one item with another similar item presented free; two for one; toofer; [例句]这些东西都是“买一送一”。Those items are "buy one get one free".Buyonegetonefree今天在costco刚见到的,洗发水在促销,呵呵。对了,你可以查一下pizzahut的北美网站,上面经常有这么一句。纯属手痒额,,,就是Two for one 望采纳!~buy one item with another similar item presented free 简单一点的就是:buy one get one free。买一送一 [词典] buy one item with another similar item presented free; two for one; toofer; [例句]出价,讨价,买入价和卖出价我在买一送一的特价时买了牙膏。I bought toothpaste during a buy-one-get-one-free sale.