YouTube Premium用户可以在2月26日前测试4x播放速度和智能下载等新功能。 YouTube Premium users can test new features like 4x playback speed and smart downloads until Feb 26.

YouTube Premium 订户现在可以尝试几个实验性功能, 包括以4x速度重播, 跳跃到流行视频部分, 以及高质量的音频。 YouTube Premium subscribers can now try several experimental features, including playback at up to 4x speed, jumping ahead to popular video parts, and high-quality audio. 其他功能,如iPhone 上的短片图片插图和离线浏览的智能下载等,也可供使用。 Other features like Picture-in-Picture for Shorts on iPhones and smart downloads for offline viewing are also available. 这些功能通过YouTube实验网页可访问到2月26日,反馈将有助于确定这些功能是否永久化。 These features are accessible until February 26th via the YouTube experimental page, and feedback will help determine if they become permanent.