Aurorae are caused by the interaction between energetic charged particles from the sun and gas molecules in the upper atmosphere of the Earth.

极光是由地球大气上层的气体分子与来自太阳的高能带电粒子相互作用产生的。

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There have been small signs of progress in recent years, including agreements to jointly monitor glaciers and study the interaction between the atmosphere and the ocean.

近几年以来，这一进程已经出现一些细微迹象，包括联合检测冰川，以及研究气候与海洋的相互作用的协议。

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As Tom Michelberger says, "Perfection does not create memories, because memories only result from movement, from a lively experience of interaction - with people, the surroundings and the atmosphere."

汤姆·蜜歇贝格认为，“顾客对来此下榻的回忆并不源自此处的完美。”因为回忆仅源自互动，源自在这里和人，和环境，以及这里的气氛的生动的互动体验。

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It is the UN system's authoritative voice on the state and behaviour of the Earth's atmosphere, its interaction with the oceans, the climate it produces and the resulting distribution of water resources.

UNESCO: CULTURE

More recently, his techniques have begun to reveal how the changing ice cover might affect the interaction between the Arctic Ocean and the atmosphere.

BBC: Cryosat spots Arctic sea-ice loss in autumn