你为何想当一个老师？

Why did you want to become a teacher?

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 为何 wèihé why
3 想 xiǎng
  1. to think (about)
  2. to think of; to devise
  3. to think (that); to believe (that)
  4. to desire; to want (to)
  5. to miss (feel wistful about the absence of)
=4 当 dāng
  1. (onom.) dong
  2. ding dong (bell)
=4 当 dāng
  1. to be
  2. to act as
  3. manage
  4. withstand
  5. when
  6. during
  7. ought
  8. should
  9. match equally
  10. equal
  11. same
  12. obstruct
  13. just at (a time or place)
  14. on the spot
  15. right
  16. just at
=4 当 dàng
  1. at or in the very same...
  2. suitable
  3. adequate
  4. fitting
  5. proper
  6. to replace
  7. to regard as
  8. to think
  9. to pawn
  10. (coll.) to fail (a student)
=5 一个 yīge
  1. a; an; one
  2. the whole (afternoon, summer vacation etc)
=5 一个 yīgè
  1. Combination of the numeral 一 (“one”) and the generic classifier 個／个: a; an; one
  2. same
6 老师 lǎoshī teacher

classifiers: 個, 位