1.Back up 后退
　　A: John, could you back up one slide please?
　　B: Sure.
　　A:約翰,請(qǐng)退回到上一頁(yè)好嗎?
　　B:好的。

　　2. Connect the projector to the computer 把投影儀連接到電腦上
　　A: How do you connect the projector to the computer?
　　B: Use the cable. Connect one end to the projector input, and the other end to the computer output.
　　A:你知道怎樣把投影儀連接到電腦上嗎?
　　B:用這根數(shù)據(jù)線,一邊連接投影儀的輸入口,另一端連接電腦的輸出口。

　　3.Get out of the presentation 結(jié)束演示
　　A: How do you get out of the presentation?
　　B: Push Esc, and you'll be out of the presentation.
　　A:能告訴我演示完畢怎樣退出嗎?
　　B:按 Esc 鍵,你就可以結(jié)束演示了。

　　4.Input selection 輸入選擇
　　A: How come I cannot get the signal?
　　B: Did you play with the Input Selection?
　　A:我這兒怎么沒(méi)有圖像呢?
　　B:你調(diào)整輸入選擇了嗎?

　　5.Plug it in 插電源
　　A: Did you plug it in?
　　B: I did. It still dosen't work.
　　A:你插電源了嗎?
　　B:插了,但還是不好用。