But for many millions of people the devastation caused by changing seasonal patterns and unpredictable weather is already a clear and present danger.

而对于数百万民众来说，由不断变化的季节模式和变化莫测的天气导致的破坏已经是迫在眉睫的危机。

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Environmental stochasticity, This is a nondeterministic, unpredictable variation in the environmental conditions, resulting in a changing equilibrium density.

环境随机变化。环境条件非确定性的、不可预见性的变化会导致平衡密度的变化。

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Agility is the ability of enterprises to survive in an ever changing and unpredictable competitive environment.

敏捷性是企业在不断变化、不可预测的竞争环境中生存的能力。

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The reality is that students will work in a world of business that is fast-changing, global and often unpredictable.

FORBES: Teaching Business In A Time Of Crisis

The problem is that those needs are changing almost as quickly as they can be expressed, and in unpredictable ways.

WSJ: The Library's Future Is Not an Open Book | By Julie V. Iovine | Public Library Renovation