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

好的，我们把这个问题说清楚吧。

'cause I'm only gonna say this once.

我只说一次。

This " once in a lifetime" event actually may take place twice in some folks'lives.

这种" 生平仅见" 的事情其实对于某些人来说这辈子可能见过两次了。

To do this once would feel like you're performing.

这样做感觉就像是在表演。

Hang on one second. Hear me out, just this once, Isabella!

等一下，听我说完，伊莎贝拉，就这一次。

Now listen up, because I'm only going to say this once.

都听好了，我只说一遍。

I'm only gonna say this once.

我这话只说一遍。

And it's how this once mighty star will end its life.

它将是这颗威力无比的恒星的最终归宿。

Don't you think that, just this once, you could return the favor?

你就不能考虑下，就这次算是回报他吗？

Can't you let lad go just for this once? He is genuinely remorseful.

你就不能饶了这孩子吗？就这一次都不行吗？他是真心悔悟了。

And since it's not, we'll let it go just this once?

既然不是战时，这次就算了可以吗？

Does it ever occur to you that, just this once, you might be wrong?

你就没想过或许这次是你错了吗？

I'm gonna get to the bottom of this once and for all.

我这次要追查到底。

Although, fun story: I did do this once.

不过，有趣的是，我曾经这样做过。

As you can see, this once massive glacier has already lost much of its ice.

虽然曾经体量很大， 但现在却大大缩减了。

You don't mind, do you, Mrs Hughes? - I don't mind. Not this once.

您不介意吧，休斯太太？-不介意。下不为例。

These murals, document life in Guge and present a pictorial history of this once great kingdom.

这些壁画记载着古格王朝的生活，展示着这个盛大一世的王朝的历史画卷。

If only there was some way we could settle this once and for all. But how?

有什么办法能一次性解决这个争论就好了。可该用什么办法呢？

I'm telling you make this once and you will make it over and over and over.

我告诉你，做一次，你就会停不下来。

Oh, God, Okay, I'm just gonna ask you this once, and I want a straight answer.

哦，天呐，好吧，我只问你一次，我希望得到直接的回答。