And use apostrophes properly once and for all.

从此以后，正确使用省字符。

Alright, let's settle this once and for all.

好的，我们把这个问题说清楚吧。

He called this a once and for all decision.

他称这是不可改变的决定。

And take this bastard down once and for all.

彻底地打败这些混蛋。

Let's stop them once and for all, girls.

一举阻止他们 女儿们。

Once and for all, so we can stop selling it.

一劳永逸，这样我们就能停止出售了。

So, once and for all, are video games bad for you?

那么，电子游戏有害处吗？

Once and for all, would you like to do the honours?

一劳永逸，你愿意做这个荣誉吗？

But one more question to settle it once and for all.

但还有最后一个问题。

Let's just put this to bed once and for all.

那就把事一次性说清楚吧。