Ricardo, but not Keen, used a "labor theory of price" in which a commodity's "innate worth" was the amount of labor needed to produce it.

但不是Keen，使用了“价格劳动论”，认为商品的“内在值”指生产它需要的劳动量。

youdao

Those who are particularly keen to get their hands on a copy of a new book, for instance, may be willing to pay a higher price for it, which may explain the persistence of expensive hardbacks.

比如那些特别热衷于获得版权书的人会愿意支付较高的价格。这可以解释坚持买昂贵精装书的现象。

youdao

She reveals that she has already acted as an egg donor for a wealthy British couple based in Dubai, and is keen to do so again if the price is right.

她透露，她曾经捐助过迪拜一对富裕的英国夫妇，并渴望再次这样做，如果价格合适。

youdao

Instead, it sets a keen price, and then relies on a vast network of resellers and retailers to close the deal with customers.

ECONOMIST: Old-school retailing in a high-tech business

Long-lasting profits depend on high quality produced with a keen eye to costs and price.

BBC: The sweet sound of success