Could you show me how this projector works?

请教如何使用这部幻灯机好？

Do you know where the slide projector is?

你知道幻灯机哪？

When I picture her now I conjure a single image, as if my memory is a slide projector and the tray is stuck.

现想象她的样子，的脑海浮现出一个孤零零的画面，就好像的记忆是一台幻灯机，而片盒却卡住了。

In the old days, back before we had computers, one of the more popular ways to show things was to have a slide projector.

过去， 拥有计算机之前，一种更流行的展示事物的方式是使用幻灯机。

If you were giving a job talk--and this is for people in graduate school particularly--If you were giving a job talk and the slide projector breaks, you're screwed.

如果你正做一个工作演讲——这是为研究生院的人准备的——如果你正做一个工作演讲， 而幻灯机坏了，你就完蛋了。