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一款功能强大的在线学习助手：一键秒课、倍速播放（当前/全部页）、单页/全局静音暂停、高清截图（可视/整页/选区）、番茄钟、护眼关爱、解除复制右键限制、自定义导航。
一款功能强大的在线学习助手：一键秒课、倍速播放（当前/全部页）、单页/全局静音暂停、高清截图（可视/整页/选区）、番茄钟、护眼关爱、解除复制右键限制、自定义导航。
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