With a conventional mortgage, the payments consist of both capital and interest.

一般的抵押借款，偿还包括本金和利息两部分。

《柯林斯英汉双解大词典》

With an official interest rate of 0.1%-which the bank left unchanged at its meeting on friday-it has little scope to do much more through conventional means.

日行在周五的会议中表示将保持0.1%的官方利率不变，然而这些传统的方式已经很难发挥更大的作用了。

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As the nature of warfare changes, favoring urban combat and regional conflicts rather than conventional combat, the military is gaining a great deal of interest in less-lethal weapons.

随着战争性质的变化，常规性战斗向城市巷战和地区性冲突倾斜。

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That's another conventional formula that goes from interest rate to price of the security.

这是另一条已知利率,求证券价格的经验公式

耶鲁公开课 - 金融市场课程节选

When you look at the pattern of where the subprime loans have gone, you see it's the same set of neighborhoods, the same zip codes where banks and others who loan at conventional mortgage rates - the lower interest rates, the more desirable mortgage products, they ignored those neighborhoods and those same neighborhoods are the ones where you see a lot of subprime activity.

NPR: Beware the Bad Home Loans

It also renders conventional monetary policy impotent, as the interest rate that prevents too much saving is below zero.

ECONOMIST: Paul Krugman's London lectures

And that's why there is no financial orthodoxy so entrenched, no conventional thinking so engrained, no special interest so strong that it should ever stand in the way of the change that hard-working families need.

BBC: In full: Brown's speech to Congress