n.放映机,幻灯机,投影仪,设计者,放映技师
You gave me back the projector.
你将幻灯机还给我了。
A light pointer is often useful with a slide projector.
光指示器经常与幻灯片放映机一起使用.
There is a new projector in my office.
我的办公室里有一架新的幻灯机.