back up, prepare a second copy of a file, program, etc. that you can use if the main one fails., plug in, connect electrical equipment to the main supply of electricity., scan in, pass light over a picture or document using a scanner in order to copy it and put it in the memory of a computer., shut down, stop a machine working., turn down, reduce the noise produced by a piece of equipment by moving its controls., turn off, stop the flow of electricity by moving a switch, pressing a button, etc., turn on, start the flow of electricity by moving a switch,pressing a button, etc., turn up, increase the sound of a piece of equipment., type in, use the keyboard to put information into a computer., break down, stop working because of a fault., log off, perform the actions that allow you to finish using a computer system., log on, perform the actions that allow you to begin using a computer system.

Working with Computer

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？