And use apostrophes properly once and for all.

从此以后，正确使用省字符。

This complex fortifications was made to stop the German enemy once and for all.

这座防御工事构建原意是要劳永逸阻止敌方德国。

So can I purge the mind of fear, once and for all?

那么，能否劳永逸地清除心中的恐惧？

So...let's just settle this once and for all. Take a DNA test. All I need is one strand of hair.

因此...让次性解决这问题。做个DNA测试。只需要你撮头发。

There is one question we houyhnhnms, are at this very moment debating… whether we should get rid of the yahoos once and for all.

有个问题就是，慧骃国，在此时正在讨论......是否应该将 yahoo 次性摆脱。

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

那么，电子戏有害处吗？

The gold was but a means, a means to rid this kingdom of Uther Pendragon once and for all.

金子只是种手段，使这个王国永远地摆脱乌瑟.彭德拉根的统治。

We laid out plans on everything from reforming our tax and regulatory system, to reviving our economy, to rebuilding our military, to fixing the VA once and for all.

制定了篮子计划，从改革税制，监管制度，导致重振经济，重建，劳永逸的完善退伍人事务部。

Well, let's settle it once and for all by answering today's quiz question.

好吧，让通过回答今天的问题来马上解决。

Are we about to break up with the plastic straw once and for all?

要彻底告别塑料吸管了吗？

And I'll prove it once and for all.

给你个劳永逸的证明瞧瞧。

And find an answer to this extremely important scientific problem, once and for all.

彻底地找到这个极其重要的科学问题的答案。

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

劳永逸，你愿意做这个荣誉吗？

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

好的，把这个问题说清楚吧。

When we change the way we define prestige and fund regional public universities, we will make higher education equitable once and for all.

当改变对于“有名望”的定义，并资助区域性公立大学，就能让高等教育变公平，劳永逸。

And then once and for all he drills the hole and puts in the hook.

然后他钻洞挂钩气呵成。

Seal the breach more effectively to bring the temperature down once and for all.

以更有效方式封住裂缝 劳永逸地降低温度。

And their hope is, obviously, to end this conflict once and for all.

显然，他希望彻底结束这场冲突。

We need to be sure Samaritan is destroyed once and for all.

必须要确保将撒马利亚人彻底摧残。

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

那就把事次性说清楚吧。