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This is a PPT background picture related to the Silk Road. Free download of natural scenery slideshow background pictures;
Keywords: camel slide background image, desert PowerPoint background image
Leaves, blue, water, leaves falling on blue water ripples PPT backgr...
CD, circuit board elements, technology background ppt template
Chemical molecular structure, medical laboratory research ppt templa...
Hand holding red three-dimensional red heart, concerned about health...
Auspicious clouds shading, Chinese wall background, Chinese dragon, ...