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This is a still life PPT background image with the theme of a SLR camera lens. On a light and hazy background, there is another universe inside a lens;
Keywords: elegant, hazy slide background picture, lens still life PPT background picture, 16:9
This is a set of nostalgic campus feelings, "To Youth" cla...
Cartoon background teaching open class PPT template， This is a se...
This is a complete frame of a city silhouette background, a PPT temp...
This is a set of PPT templates for a book sharing background with a ...
PPT template of practical entrepreneurial financing plan for picture...
Blue micro three-dimensional post competitive resume PPT template， ...