I reached for the chopping board on the drainer.

我伸手去抓排水器上的切菜板。

That's why we have gainers and drainers.

这就是为什么我们有增益者和消者。

And the drainers are like, man, that person wears me out.

那些消精力的人就像，天哪，那个人让我筋疲力尽。

It would stand to reason said drainers would need vampires to drain which means there would be missing vampires and plenty of them.

那么他们需要吸鬼来合情合理这就意味着会有吸鬼失踪而且数量很多。