You can sign up with the Salem Fire Corporation, pay a yearly subscription fee, and if your house catches on fire, they will come and put out the fire.

你可以和塞伦消防公司签约，每年支付会员费，如果你的房子着火，他们会来灭火。

耶鲁公开课 - 公正课程节选

What the Fed said it would do is announce an auction of so many billion dollars of loans to member banks and the banks have to supply collateral to the Federal Reserve.

美联储声明的它会做的事是,举行一场对,会员银行发放几十亿美元贷款的拍卖会,条件是这些银行必须,给联邦储备银行提供抵押品。

耶鲁公开课 - 金融市场课程节选