Word: 到底

你到底为什么在这里？

Nǐ dàodǐ wèishénme zài zhèlǐ?

Why on earth are you here?

你到底为什么要这么做？

Nǐ dàodǐ wèishénme yào zhème zuò?

Why exactly did you need to do that?

你到底在这儿做什么？

Nǐ dàodǐ zài zhèr zuò shímǒ?

Whatever are you doing here?

你到底怎么了啊？

Nǐ dàodǐ zěnme le a?

What happened to you?

你到底是怎么做的？

Nǐ dàodǐ shì zěnme zuò de?

How in the world did you do it?

你到底是谁？

Nǐ dàodǐ shì shéi?

Who are you, anyway?

你到底有没有听我说的话？

Nǐ dàodǐ yǒuméiyǒu tīng wǒ shuō dehuà?

Did you listen at all to what I said?

你到底答应吗？

Nǐ dàodǐ dāying ma?

Did you eventually respond?

兄弟，你到底姓什么啊？

Xiōngdì, nǐ dàodǐ xìng shénme a?

Bro, what's your last name?

到底发生了什么事。

Dàodǐ fāshēngle shénme shì.

What actually happened?

到底怎么了？

Dàodǐ zěnme le?

What on earth is the matter?

到底躲到哪裏去了？

Dàodǐ duǒ dào nǎlǐ qùle?

Where in the world could it be hiding?

我不确定那座桥到底有多长。

Wǒ bú quèdìng nà zuò qiáo dàodǐ yǒu duō cháng.

I don't know the exact length of this bridge.

我就想知道到底出了什么事。

Wǒ jiù xiǎng zhīdào dàodǐ chūle shénme shì.

I just want to know what actually happened.

谁来告诉我到底发生了什么事？

Shéi lái gàosu wǒ dàodǐ fāshēngle shénme shì?

I am still waiting to be told what happened.

那到底是什么声音？

Nà dàodǐ shì shénme shēngyīn?

Whatever is that noise?

问题是她到底来还是不来。

Wèntí shì tā dàodǐ lái háishi bù lái.

The point is whether she will come or not.