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Teaching and speaking class lectures General PPT template, realistic blackboard style, full of campus style, suitable for teacher lecture class open class use.
This is an abstract style of love red dragonfly slide background pic...
This is a love-like slide background image, red-based colors, with g...
This is a pink as the background color, abstract curve as the theme ...
This is an elegant green background, wheat field PowerPoint backgrou...
This is an elegant pink background, abstract PowerPoint background i...
This is a beautiful natural scenery slideshow background picture, wi...