Internal combustion engines must maintain a stable operating temperature, not too hot and not too cold.

发动机必须保持一个恒定的工作温度，既不太热也不太冷。

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Over the past 10, 000 years, however, the climate has remained remarkably stable by historical standards: not too warm and not too cold, or Goldilocks weather.

不过，在过去的10万年中，气候已经保持了显著地稳定，按照历史的标准：这段时期不很热，也不很冷，或者说是黄金时期。

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This "environmentally responsive" material would keep a soldier not too hot and not too cold, constantly adjusting to outside conditions as well as body heat.

这种“可感应环境”的材料可根据外界环境温度和体温进行自我调节，帮助士兵免受高温严寒的困扰。

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Do this when the weather is not too hot and not too cold.

VOA: special.2009.04.28

And it's not too cold.

也不会让人冷得瑟瑟发抖。

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Astronomers call the most promising of these places "Goldilocks planets, " because they orbit in a temperate zone not too hot and not too cold to support liquid water essential for carbon-based life as we know it.

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The EU is trying to cook up a "Goldilocks budget" - not too hot for the countries like Britain, the Netherlands and Sweden who want to see spending frozen and not too cold for the countries of the South (Spain, Portugal, Greece) and East (led by the biggest net beneficiary Poland) who want to see spending on them maintained.

BBC: EU budget: Wanted - a Goldilocks recipe?

Although I was on the road with the family, I was able to check in with the markets on a regular basis and was a little disturbed to hear the talking heads jawing about things suddenly looking not-too-hot and not-too-cold.

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