raise the price of something after agreeing on a lower price.
低价谈妥后又抬高价格。
Some stores jack up the price.
有些商店抬高价格。
Some are bulling shares.
有些人正大量买进股票以抬高价格。
price-fixing (setting prices by agreement among producers,esp so as to keep them artificially high)
价格垄断（制造商之间的协议定价,尤指人为抬高价格者）.
Setting prices by agreement among producers, esp so as to keep them artificially high
价格垄断（制造商之间的协议定价，尤指人为抬高价格者）
This department store often sells articles at prices above par.
这家百货公司常常把货品抬高价格出售。
The giants then raise prices, causing people who need their products to pay a larger amount than before.
这些巨型公司于是抬高价格，使需要购买他们的产品的人付出更高的代价。
To raise in value or price, especially over time.
抬高…价格尤指经过一段时间后提高价值或价格
The monopoly capitalists ganged up to raise cotton prices.
垄断资本家们串通一气抬高棉花价格。
Maybe they are going to jack up the price of oil.
他们可能会抬高石油价格。
He ran up the bidding at an auction.
他在拍卖中抬高开价
Some stores jack up their prices.
有些商店抬高物价。
He raised his price unfairly.
他不当地抬高价钱。
The sellers of products or factor services do succeed in driving up the average price level.
产品或各劳务要素的出售者抬高平均价格获得了成功。
Analysts say high milk prices will have an effect far beyond the ice-cream industry, and could result in more expensive cheese and pizza.
分析人士说，居高不下的牛奶价格影响的不仅仅是冰激淋产业，还有可能抬高奶酪和比萨的价格。
Its rise has bid up the price of Africa's traditional raw commodities, and depressed the price of manufactured goods.
中国的崛起抬高了非洲传统原材料商品的价格，但是压低了制成品的价格。
They bid up the new buildings
他们(在拍卖场)哄抬了这些新楼的价格。
They point out that there have been cases where private contractors submitted very low bids in order to win contracts, but later raised prices substantially.
工会指出，在有些情况下私人承包商为了中标，在投标时要价很低，事后却把服务价格抬得很高。