As a result, the structure of that evolutionary tree is very unstable and can flip around.

结果是，进化树的结构变得非常不稳定而且能转变。

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Emerging economies are normally highly unstable due to the regular changes in industry structure, institutions and macro-economy.

由于产业结构，体系和宏观经济的不断变化，新兴经济通常都十分的不稳定。

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The internal structure of the pavilion is confronted by the soft outside adaptations that reveals the unstable relationship of the original warehouse as well as the climbing walls themselves.

场馆的内部结构正对着柔和的室外改造，这也揭示了原来仓库和攀岩墙之间不稳定的关系，以及与攀岩墙之间不稳定的关系。

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Grilled corn kernels, diced red onions and mango elbow each other for attention until chunks of avocado mediate and mellow the mix into a tasty salsa an unstable structure turned stable.

NPR: What's in a Name? The Avocado Story

But this financing structure was inherently unstable.

NEWYORKER: Beyond the Matrix

DaimlerChrysler will also have to deal with Mitsubishi's unstable ownership structure (see chart).

ECONOMIST: Daimler and Mitsubishi Motor