It is not at all clear why the costs of serving a highly loyal customer should in principle be different from those of serving any other type of repeat customer.

为什么服务一个高度忠诚的顾客的成本原则上与服务其他类型的回头客的成本是不同的，这一点完全不清楚。

youdao

The BBC "ain't broke", they say, by which they mean it is not broken (as distinct from the word 'broke', meaning having no money), so why bother to change it?

因此他们说，既然BBC “还没有坏”，也就是说BBC还没有垮掉(即还没有破产)，那么为什么要这么麻烦地去改变它呢？

youdao

Then imagine the difficulties of defending it against the obvious criticisms in an era before mathematically rigorous physics: why are we not flung from the Earth if it spins round so fast?

然后再想象一下在严格数学化的物理时代之前只身对抗各种显而易见的质疑的困难吧：如果地球转的这么快我们为什么没有被甩离地球？

youdao

"And the biggest problem that we heard from our economists with regard to why employers are not hiring, it is all the job-killing policies that are being offered by this administration and this Congress,".

VOA: standard.2009.12.29

Why not profit more from it?

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Under such circumstances it is legitimate to ask not why the whaling industry should be prevented from plying its trade but why it should be permitted to do so.

ECONOMIST: Greater Europe

Plaintiffs do not explain why it is unjust for the Defendants to retain the money from someone who did not believe their misrepresentations when purchasing, did not purchase because of their misrepresentations, or received the benefit promised.

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