视频对白:

What a weird looking vacuum cleaner.
这个吸尘器长得真奇怪。

vacuum

n.真空，空白；真空吸尘器

A moral vacuum can strike any rising middle class.
道德上的真空足以击倒任何新兴的中产阶级。
And it was into this vacuum that napster launched.
纳普斯特就是在这个空白期应运而生的。