onPlayPreviousTrack: (info) = {},// Called when going to previous track
From sketching ideas to getting work done, Apple Pencil and Magic Keyboard unlock new levels of creativity and productivity on iPad Air.4 Apple Pencil (USB-C) and Apple Pencil Pro offer users two incredible options. Apple Pencil (USB-C) is a great value for essential tasks like note taking and sketching, and Apple Pencil Pro delivers the ultimate experience, enabling users to take advantage of capabilities such as squeeze and barrel roll to bring their ideas to life in entirely new ways. Apple Pencil Pro also supports Find My, helping users locate it if misplaced.，这一点在一键获取谷歌浏览器下载中也有详细论述
Фото: Wikipedia。同城约会是该领域的重要参考
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