Since they had not made iterative development a habit, when they were stressed by trying to tackle a particularly abstract and difficult problem, they chose to work from their comfort zone.

由于他们没有将迭代开发作为一种习惯，所以当他们面临解决一个特别抽象的和困难的问题的时候，他们就会选择自己的舒适地带。

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Coral has a narrow comfort zone and is highly stressed by a temperature rise of less than one degree Celsius.

珊瑚的适应温度范围小，即使是小于一度的变化也会使珊瑚礁遭到破坏。

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He said Council members stressed the urgency of immediately establishing border security mechanisms and said a demilitarized border zone "shall be established. ""

李保东说，联合国安理会成员国强调，必须立即在苏丹和南苏丹边境建立安全机制，并说应当设立边界非军事区。

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Market participants agree that banks in many fiscally stressed euro-zone countries are relying on the central-bank loans to stay afloat, although the situation in Spain has become the focus in the past month.

WSJ: European Banks��Large and Small��Rely on ECB

The deal is an indication that overseas investors are warming up to debt issued by European countries as troubles recede for fiscally stressed members of the euro zone.

WSJ: Spain Sells Dollar Bond