App previews are displayed as the first image on your app's product page, followed by your app screenshots.
视频预览是第一个展示在应用产品详情页上的图像，其次是应用截图。
Previews are between 15 and 30 seconds long and use footage captured on the device to show the experience of using your app.
预览视频的时长需在15至30秒之间，且最好用镜头捕捉那些如何在相应设备上使用该应用程序的画面。
Apps with names, descriptions, screenshots, or previews not relevant to the content and functionality of the App will be rejected.
应用的名称、描述、屏幕截图、视频预览，如果与应用的功能或内容无关，审核会被拒。
Apps with names, descriptions, screenshots, or previews not relevant to the content and functionality of the App will be rejected.
应用的名称、描述、屏幕截图、视频预览，如果与应用的功能或内容无关，审核会被拒。
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