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Keywords: blackboard, clock, painting tool slide background image, blue yellow flat PowerPoint chart, dynamic children's art PPT template, .PPTX format;
This is the three Chinese ink painting style, "horse" Powe...
This is a colorful green background, colorful PPT background picture...
This is a set of stylish colored PowerPoint background images, backg...
This is a very sense of science and technology, purple glare PPT bac...
This is a set of mysterious PowerPoint background images, slides wit...
A brown flower pot is growing germinated plant buds PowerPoint backg...