First, does the economy rest on too narrow a base?

首先，这种经济的基础是否过于狭窄？

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Many do-gooding outfits suffer from having too broad a focus and too narrow a base.

许多做好事的机构苦于基础过于狭窄而关注面太宽。

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So forensic scientists could use a bloodstain to narrow a victim’s age to within two decades.

这样，法医可以利用血迹是受害者的年龄范围缩小到20年以内。

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One hoodoo known as the Poodle looks like a poodle dog sitting on top of a long narrow rock.

VOA: special.2009.04.15

But it's not a very good thing if my consciousness continues to narrow and constrict beyond the threat, or beyond the hardship.

但它变得不是很好,如果我的意识继续狭窄,收紧超出威胁，超出困难。

哈佛公开课 - 幸福课课程节选

And what we know is that very often we enter a downward spiral, a vicious cycle when we go into this narrow and constrict mode.

我们知道经常会进入下行螺旋，一个恶性循环，当我们进入狭窄收紧的模式。

哈佛公开课 - 幸福课课程节选

Mr Bush's lead will have to narrow a lot, therefore, before such a slice becomes decisive.

ECONOMIST: Lexington

He explains why it's important not to have too narrow a definition of bias.

NPR: Fudging the Numbers on Hate Crimes

In other words, they come into the market research process with too narrow a focus.

FORBES: How To Save Your New Business Idea with Market Research