我不知道我應該用哪把鑰匙。

I don't know which key to use.

Source: Tatoeba

Sentence Composition

1 我不知道 wǒbùzhīdào I don't know.
2 我 wǒ
  1. I
  2. me
  3. my
3 應該 yīnggāi ought to; should; must
4 用 yòng
  1. to use; to make use of; to employ
  2. (coverb) with; using
  3. to need; to have to (usu. used in the negative or in questions)
  4. usefulness; utility
  5. (bound form) expense; outlay
  6. (courteous) to eat; to drink
  7. (literary) hence; therefore
=5 哪 nǎ
  1. how
  2. which
=5 哪 na (emphatic sentence-final particle, used instead of 啊 a after a word ending in "n")
=5 哪 né
  1. used in 哪吒 Nézhā
  2. Taiwan pr. nuó
=5 哪 něi which? (interrogative, followed by classifier or numeral-classifier)
=6 把 bǎ
  1. to hold; to grasp
  2. to hold a baby in position to help it urinate or defecate
  3. handlebar
  4. classifier: handful, bundle, bunch
  5. classifier for things with handles
  6. (used to put the object before the verb: 把 bǎ + {noun} + {verb})
=6 把 bà handle
=6 把 pá
  1. (obsolete on its own in Standard Chinese) alternative form of 爬 (pá, “to scratch”)
  2. a surname
  3. alternative form of 爬 (pá, “to scratch”)
7 鑰匙 yàoshi key

classifier: 把