他们发明了一种新材料——透明的电极，就像我们显示器和手机的屏幕那样。
They've developed a novel material — a transparent electrode, like the screens on computer monitors and phones.
处理电脑、显示器、打印机以及手机是个巨大的环保问题，而且愈加严重。
DISPOSING of computers, monitors, printers and mobile phones is a large and growing environmental problem.
如今，小到手机，大到平板电视机，液晶显示器可以说是无处不在。
FROM tiny mobile phones to enormous flat-panel televisions,liquid-crystal displays (LCDs) are everywhere.
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