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— recognizing the potential contribution of article writing to the career of the writer and the value of the article to science and technology.

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, however, as to be virtually, if not actually, infinite.

after you fall into slumber, your brain activity level will increase again slightly。

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from a single point in the subject to focus on a single point in the image, as a consequence of their passing through a series of transparent (透明的) elements with precisely curved surfaces.