它有四英尺高，胸前有一台平板电脑。
He repeatedly took an existing but half-formed idea—the mouse-driven computer, the digital music player, the smartphone, the tablet computer—and showed the rest of the industry how to do it properly.他反复琢磨那些已经存在的、但尚未成熟的创意，例如鼠标驱动的电脑、数字音乐播放器、智能手机、平板电脑等，并向其他公司展示如何让这些构思变为现实。
A tablet computer holds some practical advantages.平板电脑有一些实用的优点。
