1.No signal 沒有信號
　　A: Why is there no signal?
　　B: Push the Function key and the F4 key at the same time.
　　A:為什么沒有信號呢?
　　B:同時按住功能鍵和F4鍵。

　　2.Power outlet 電源
　　A: Where is the power outlet?
　　B: It's usually on the wall. But it seems to be under the table in this room.
　　A:知道電源在哪嗎?
　　B:一般都是在墻上,但這個房間的好像是在桌子下面。

　　3.Power strip 電源插排
　　A: I think we need a power strip.
　　B: Okay. I'll get one right now.
　　A:我想我們需要一個電源插排。
　　B:好的,我現在就去拿一個。

　　4.Make sure 確認
　　A: Mike, please make sure that the projector works.
　　B: I checked twice already.
　　A:邁克,請確認一下投影儀是不是好用。
　　B:我已經查過兩次了。

　　5.Turn on the projector 開投影儀
　　A: How do you turn on the projector?
　　B: Push the power button. It'll take a while before the projector is ready.
　　A:怎樣開投影儀啊?
　　B:按下開關,投影儀開始工作之前要預熱一會兒。