The maturity of a mortgage is the date when it's paid off.

其中抵押贷款期限是指清偿贷款的日期

耶鲁公开课 - 金融市场课程节选

What Hicks said is that in these term structures, actually, I've just showed the one-period, he had one-period forward rate-- but you could do it over any combination and you can get forward rates of any maturity at any future date.

希克斯指出利率期限结构中,我刚才给你们演示了,希克斯是如何推导一年期远期利率的,但是你们通过其他组合重新推导,还算出未来任意时刻,期限的远期利率

耶鲁公开课 - 金融市场课程节选