我们没有屏幕，但我们可以把幻灯片打到后墙上。

We have so screen, bur we can project a slide onto the black wall.

youdao

当我们看电影时，我们常常忘记，事实上，屏幕上根本没有任何东西移动。

When we watch a moving picture, we don't often remember that nothing on the.

youdao

当我们看电影时，我们常常忘记，事实上，屏幕上根本没有任何东西移动。

When we watch a moving picture, we don't often remember that nothing on the.

youdao