His story was among dozens of UFO sightings in defense ministry files released at the National Archives in London. The documents contain no official explanation for the incident.

他的故事是位于伦敦的国家档案馆公布的国防部所记载数十起幽浮目睹案例之一。这批文件并未有官方对这次事件的解释。

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It also gives the explanation in depth on the model of forming the theory of Architectural Culture and its research objects, methods and objectives, etc, which contain different opinions.

讨论了与建筑文化学有关的一些重要问题，并对建构“建筑文化学”理论的模式及其研究的对象、方法、目的等接纳入了不同的观点而进行了比较深入的阐发。

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"Your response should contain an explanation of the steps already taken to address these deficiencies and needs, and it should also detail the Bureau's future plans to address these critical IT issues, " the letter says.

CNN: graphic