第二步：下载并允许未知来源 点击下载按钮后，设备可能会提示你允许安装“未知来源的应用”。在“设置”中打开“来自未知来源”的选项。The interior construction of Telegram X for iOS can also be much better optimized with the things which are expected of the Telegram app in 2018 and beyond. Equ