劍橋詞典in which the amount offered by each person to buy something is not known by any of the other people involved （買方競(jìng)投時(shí)出價(jià)保密的）秘密競(jìng)投 a sealed-bid auction /sale 秘密競(jìng)投的拍賣／銷售 The sale of the land will be a sealed-bid process . 這塊土地的出售將通過(guò)秘密競(jìng)投方式進(jìn)行。 返回 sealed-bid