除展示主题和效果的特殊需要外，原则上建议遮蔽自然光。

Besides the effect and theme demands, it's recommended to shield hall from natural light.

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我展示我们的存在，完整的存在，以美国为背景，从前前后后不同的侧面表现主题。

I show us present, fully present, in front of, and before, the background of America.

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主题的展示是环保。

The theme of the show is environmental protection.

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我们在在线例子中展示了这些主题。

A live example illustrates these topics.

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主题演绎是世博会展示的灵魂。

Theme development is the soul in World's Fair exhibitions.

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主题演绎是世博会展示的灵魂。

Theme development is the soul in World's Fair exhibitions.

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