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China fire protection, fire emblem, light, city, Huabiao, flag and other element design, fire emblem theme color red and blue color, simple flat design, suitable for fire knowledge education, firefighter work report, firefighter work plan ppt template.
Keywords: cartoon doctor PowerPoint background picture, gray flat PP...
Keywords: cartoon doctor PowerPoint background picture, green flat P...
Keywords: dynamic gestures, fluorescent squares PowerPoint backgroun...
Keywords: blackboard slide background image, chalk hand-drawn PowerP...
Keywords: blackboard slide background image, chalk hand-drawn PowerP...
Keywords: blackboard slide background image, chalk hand-drawn PowerP...