It also fits into an optional dock that connects to a keyboard and mouse, converting the phone into a laptop.
它还配有一个可选的底座，可连接到键盘和鼠标，将手机转化为笔记本电脑。
The company also sells a $69 accessory physical keyboard that features a dock at the rear to hold the iPad upright.
苹果还出售价格69美元的物理键盘配件，它后面有一个托，可以把iPad立起来。
Apple offers an external keyboard accessory (above), so you can dock the iPad.
苹果提供了外接的键盘附件(如上图所示)，所以你可以把iPad安置在桌面上。
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