为什么

nǐ zhè yàng dà jiào dà hǎn shì wèi shén me

你这样大叫大喊是为什么？

What are you shouting like this for?

wèi shén me tā hái zài zhè r

为什么他还在这儿？

How is it that he is still here?

nǐ jiū jìng shì wèi shén me qù nà r

你究竟是为什么去那儿？

What on earth did you go there for?

jǐng chá wèi shén me bù diào chá zhè jiàn shì

警察为什么不调查这件事？

Why aren't the police investigating this?

dāng wǒ jiě shì wèi shén me chí dào shí wǒ de lǎo bǎn hěn néng lǐ jiě

当我解释为什么迟到时，我的老板很能理解。

My boss was very understanding when I explained why I was late.

wèi shén me wǒ yào shuō nà xiē nán tīng de huà ne

为什么我要说那些难听的话呢？

Why did I say those horrible words?