There no way to just pick up a pen and draw on the screen. Well… in some cases there is, but I’ve not seen touch screen technology yet that’s as accurate or simple as a pen on paper.
目前我们还不能拿笔在屏幕上涂画，即便可以，现在的触摸屏技术也不如纸笔那样精准和简单。
If you must work on your flight, you will experience turbulence as soon as you touch pen to paper. Or start to drink your coffee.
如果你必须在旅途中工作，一旦你的笔碰到纸你就会经历颠簸。或开始喝你的咖啡。
A stylus with touch screen has to replicate exactly what human would do with pen and paper.
带触摸屏的触控笔具有复制到底是什么人将与笔和纸做的。
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