ppt设置母版样式视频：添加背景图片应用矩形工具制作页面边框_哔哩哔哩_bilibili

Name: ppt%E8%AE%BE%E7%BD%AE%E6%AF%8D%E7%89%88%E6%A0%B7%E5%BC%8F%E8%A7%86%E9%A2%91%EF%BC%9A%E6%B7%BB%E5%8A%A0%E8%83%8C%E6%99%AF%E5%9B%BE%E7%89%87%E5%BA%94%E7%94%A8%E7%9F%A9%E5%BD%A2%E5%B7%A5%E5%85%B7%E5%88%B6%E4%BD%9C%E9%A1%B5%E9%9D%A2%E8%BE%B9%E6%A1%86
Uploaded: 2025-07-06T02:38:00.200Z