剑桥词典written abbreviation for or best offer : used in advertisements for possessions that people are trying to sell , to show that they will accept slightly less money than the price they are asking for （用於廣告中）價格可商議（or best offer的縮寫） Exercise bike for sale - $40 obo. 健身車賤賣——40美元（可議價）。 返回 obo