1. 抬高…的价格
    If someone bids up the value of something, they try to increase it, for example by offering to buy it at a higher price than usual.

    e.g. ...the British passion for bidding up the price of each other''s houses...
           英国人哄抬彼此房价的热情。
    e.g. They agreed to bid the picture up to 4,500 francs.
           他们同意将这幅画的价格提至4,500法郎。