Why do you want to know?

你为什么想知道？

Why do you want to see them?

你为什么想看它们？

Why do you want to do the volunteer job?

你为什么想做这份志愿工作？

Why do you want to be a bitch?

你为什么要做一个贱人？

Why do you want to give up this opportunity?

你为什么要舍弃这个机会？

Who are you, and why do you want to help me?

你是谁，你为什么要帮我？

Well, why do you want to do that?

为什么要这么做呢？

Why do you want to wrestle?

为什么你们想要摔角？

Why do you want to study xx?

为什么想学习这个？

Why do you want to be a seaman ?

为什么你想当一名海员？