1.No signal 没有信号 A: Why is there no signal? B: Push the Function key and the F4 key at the same time. A:为什么没有信号呢？ B:同时按住功能键和F4键。 2.Power outlet 电源 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:知道电源在哪吗？ B:一般都是在墙上，但这个房间的好像是在桌子下面。 3.Power strip 电源插排 A: I think we need a power strip. B: Okay. I'll get one right now. A:我想我们需要一个电源插排。 B:好的，我现在就去拿一个。 4.Make sure 确认 A: Mike, please make sure that the projector works. B: I checked twice already. A:迈克，请确认一下投影仪是不是好用。 B:我已经查过两次了。 5.Turn on the projector 开投影仪 A: How do you turn on the projector? B: Push the power button. It'll take a while before the projector is ready. A:怎样开投影仪啊？ B:按下开关，投影仪开始工作之前要预热一会儿。
