I would never have been able to afford the 90 per cent mortgage I took out if I did not do a full year living rent-free and that is just not an option for most people.
假如不是全年免租，那么我将永远无法偿付按揭的那90%，这对于绝大多数人来说不是一种选择。
2
In the fifth chapter, we establish the mortgage loan model according to the American option, and deviate the partial different equation by no arbitrary principle.
第五章主要研究基于美式期权建立抵押贷款模型，并利用无套利原理导出对应的微分方程。
3
For instance, consider the most popular low down payment loan option, the FHA mortgage, which allows buyers to purchase a home with 5% down.