每当我在图书馆看到好文章时，总想把它抄下来，可时间经常不够用。于是，我想要发明一种扫描笔。它的笔尖是微型扫描仪，要记录时，把笔尖对准想记录的东西一扫笔尖上的窗口会自动打开，把内容完全记录在笔杆内的储存器里。笔杆后段可以连接在打印机上，回到家以后，把所要的 Whenever I see a good article in the library, I always want to copy it down, but time is often not enough. So, I want to invent a scanning pen. Its pen tip is a micro-scanner. To record, align the tip of the pen with what you want to record. The window on the pen tip is automatically opened and the content is fully recorded in the holder inside the pen. After the pen can be connected to the printer, after returning home, put the desired