你到底知不知道自己在干什么？

What the hell do you think you are doing?

《牛津词典》

那个士兵在那儿到底在干什么不得而知。

Just what the soldier was doing there is unclear.

《柯林斯英汉双解大词典》

他到底在干什么呢？

What in the world is he doing?

《柯林斯英汉双解大词典》

我们到底在害怕什么？

What on earth are we fearful of?

youdao

你是在开玩笑吧？你到底是谁？

Are you kidding? Who are you?

youdao

到底在五秒之内转移了多少细菌呢？

How many bacteria actually transfer in five seconds?

youdao

那么，iPad的酷炫游戏到底在何方呢？

So where are all the great iPad games?

youdao

宪法到底在多大程度上保护了你的数字数据？

Just how much does the Constitution protect your digital data?

youdao

人们到底在搜索什么呢？

What exactly are people searching for?

youdao

我们到底在争什么呢？

What are we really fighting about?

youdao

似乎没人清楚自己到底在干嘛。

No one seems to quite know what they're doing.

youdao

你到底在搞什么名堂？

What the hell are you doing?

youdao

多年来我一直在思考，这样的担心和内疚到底从何而来。

For many years I wondered where all this fear and guilt was coming from.

youdao

但是宇宙到底怎样演化成今天这样在科学上还是个谜。

Why the universe is as it is remains an enigma to science.

youdao

物质是否从液体转变为固体，相变到底在什么位置出现？

Does stuff change phase to go from liquid to solid and so forth, right?

youdao

在某些情况下，它是不容易移动到底部的脚本。

In some situations it's not easy to move scripts to the bottom.

youdao

当我们讨论语言时，我们到底在讲些什么？

What are we talking about when we talk about language?

youdao

目前依然在讨论的问题是：梦到底是什么？

But the question under discussion really is, what are dreams for?

youdao

那到底在皮肤上扎两根针是怎样对人起作用的呢？

But how can sticking needles in your skin be good for you?

youdao

“你到底下不下来？”蓝胡子在喊。

"Will you not come down?" cried Bluebeard.

youdao

在如今的工作市场上，学历的份量到底有多重？

What's a degree's weight in the present job market?

youdao

在最近几个月里，你也许糟糕到底了。

In the last few months, you may have hit bottom.

youdao

搞清楚你在介绍人物时到底想要表达什么。

Understand what you are trying to express about your subject.

youdao

说不清楚到底是什么在驱使着这一局面。

It is not quite clear what is driving it.

youdao

在电影里，迪卡普里奥到底是在做梦，还是真的？

In the movie, is DiCaprio dreaming or is it real?

youdao

到底是什么在扼杀这么多小孩的未来？

What's stealing the future from so many children?

youdao

我们不了解生育到底如何起作用，也没有相关研究在进行。

We don't know how this happens and nobody is doing research on it.

youdao

美国在阿富汗的任务到底是什么呢？

What is America's mission in Afghanistan?

youdao

直到今天，我也没弄清楚朋友到底在担心什么。

Till today, I'm not exactly sure what he was talking about.

youdao

直到今天，我也没弄清楚朋友到底在担心什么。

Till today, I'm not exactly sure what he was talking about.

youdao