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This is a PPT background image of the atmospheric starry sky and earth meteor;
Keywords: blue starry sky PPT background picture, universe, meteor, earth PowerPoint background picture
Description: Clouds, sun, trees, houses, mountains, wind power eleme...
Introduction: exquisite work summary plan ppt template, work overvie...
Introduction: books, paper, doctor hat, trophy, character relationsh...
Brief introduction: cartoon education teaching series icons such as ...
Introduction: literary fan work summary plan ppt template, work over...
Description: The mountains, the waving flags, the golden glittering ...