"We can't celebrate a 10 percent unemployment rate, especially the long-term unemployment continues to grow in very troubling numbers,"

VOA: standard.2009.12.05

Adjustable rate mortgages have a long term -they might last for thirty years -but the interest rate is not fixed for the whole thirty years.

可调利率抵押贷款的期限很长,也许会长达30年,但是利率在30年间并不是固定的

耶鲁公开课 - 金融市场课程节选