projector|projectors

投影仪正投放着演示文稿。

A ___projector is displaying a presentation.

会议室里的投影仪坏了，我们只能用笔记本电脑开会。

The ___projectors in the meeting room are broken, so we have to use laptops instead.

我们公司会议室里的投影仪坏了，没法播放演示文稿。

The ___projector in our meeting room is broken, so we can't display the presentation.