你为什么学德语？

Why do you learn German?

Why are you studying German?

Source: Tatoeba

Sentence Composition

=1 你 nǐ you (informal, as opposed to courteous 您 nín)
=1 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
2 为什么 wèishénme
  1. why?
  2. for what reason?
3 学 xué
  1. to learn
  2. to study
  3. to imitate
  4. science
  5. -ology
4 德语 Déyǔ German (language)