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(xiàn)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(jīng)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??？
B：按下開關(guān)，投影儀開始工作之前要預熱一會兒。