很多看电影的人实际上根本不知道放映机如何工作，或它和电视的工作原理有什么不同。

Many moviegoers, in fact, have little idea how the projector actually works, or how this differs from the way a television works.

youdao

很多看电影的人实际上根本不知道放映机如何工作，或它和电视的工作原理有什么不同。

Many moviegoers, in fact, have little idea how the projector actually works, or how this differs from the way a television works.

youdao