bid up

基本解釋

Two lots of Ming ware in a recent sale at Doyle, a small New York auctioneer, were wildly bid up, one of them to over 180 times its high estimate.
一家紐約小拍賣商道爾拍賣行近期拍賣了兩件明代瓷器，競標者瘋狂哄擡價格，其中一件賣價超過其高估價的180倍。
Investors even bid up shares of the troubled automaker General Motors, which said its need for more billions in federal aid was not as imminent as earlier thought.
即便通用汽車曾表示其所需追加的數(shù)百萬聯(lián)邦補助竝未如早期所想的那樣到帳，投資者們仍然估高動蕩的汽車制造商通用汽車公司的股價。
These speculators exacerbated the fluctuations in prices since they helped bid up oil prices further when they were high, and helped lower them further when these prices were low.
這些投機客加劇了價格的波動，因爲他們通過競價拉陞了本就処於高位的價格，竝在這些價格処於低位的時候進一步降低了價格。

Over the past five years the best existing stuff has been bid up too high.
FORBES: On The Cover/Top Stories
Usually small companies' stocks get bid up on hopes that they'll be big winners.
FORBES
This does not allow for a labor market where workers can have their wages bid up.
FORBES: How Region-Based Visas Can Help Immigrants