The key thing to remember is that the vocal cords don't like switching around at the midpoint.

声带不喜欢在中间点变换位置。

We were switching whole scenes around.

我们正在切换整个场景。

Right. H: And switching you guys around, but I think this is a good way to show how this works.

D：对。 H：然后让你们轮换， 但我认为这是展示其工作原理的好方法。

A lot of other things change, too, within the movie, kind of subtly, like costuming and set design and stuff like that is constantly sort of switching around.

电影中的很多其他事情也发生了微妙的变化，比如服装和布景设计之类的东西不断地变化。