Green eco-friendly urban planning environmental protection public welfare theme ppt template

Brief introduction: hollow city, green arrow, green grass, tree, falling leaves, tree chart, green map of environmental protection transition page, suitable for eco-city planning, environmental protection, green city theme, green environmental protection public welfare theme ppt template

Brief introduction: hollow city, green arrow, green grass, tree, falling leaves, tree chart, green map of environmental protection transition page, suitable for eco-city planning, environmental protection, green city theme, green environmental protection public welfare theme ppt template