I refused a girl 20-years-old at $700.00 yesterday," one trader wrote to another in 1853.

昨天我拒绝了一个,开价七百美金的二十岁姑娘",1853年一个交易商,在给另一个的书信中写道

耶鲁公开课 - 美国内战与重建课程节选

The ask is what you have to pay them through this formula.

而卖出价就是,依据公式得出卖方的开价

耶鲁公开课 - 金融市场课程节选

The dealer will charge a higher price for you to buy the furniture than will give to you to purchase the furniture from you; that's how the dealer makes a difference.

中间商给你的报价,会比向你收购同样家具的开价高,这就是中间商如何赚取差价

耶鲁公开课 - 金融市场课程节选