High voltage switch power supply supplies the high voltage for the electron gun, changing the density and brightness of ejected electrons. 高壓電源給電子槍提供高壓，改變發射出電子的密度以及亮度。
While technology companies are offering solutions that will consume less power, users can increase the battery life of laptops by lowering the brightness of the computer screens. 同時技術公司將會提供解決能源的方案，使用者可以通過降低電腦屏幕的亮度延長電池的壽命。
Some animals have the power to see in the dark. 有些動物具有在黑暗中能看見東西的本領。
There was something sinister about the power of that man. 這個人的本領可真有點令人發瘳。
