那不是一把刀。这才是一把刀。

That's not a knife. THIS is a knife.

Source: Tatoeba

Sentence Composition

=1 surname Na
=1 Nuó surname Nuo
=1 variant of
=1
  1. (specifier) that; the; those (colloquial pr. nèi)
  2. (pronoun) that (referring to persons, things or situations)
  3. then (in that case)
=1 nuó
  1. (archaic) many
  2. beautiful
  3. how
  4. old variant of nuó
=2 不是 shì
  1. no
  2. is not
  3. not
=2 不是 shi fault; blame
3 一把 a bunch of; a bundle of
=4 Dāo surname Dao
=4 dāo
  1. (slang) (loanword) dollar
  2. classifier for sets of one hundred sheets (of paper)
  3. classifier for knife cuts or stabs
  4. (Internet slang) to bargain; to ask for a small discount (esp. on second-hand marketplaces)

classifier:

=5 zhè
  1. (pronoun) this; these
  2. (bound form) this; the (followed by a noun)
  3. (bound form) this; these (followed by a classifier) (in this sense, commonly pr. zhèi, esp. in Beijing)
=5 zhèi (coll.) this
=6 cái
  1. ability; talent
  2. sb of a certain type
  3. a capable individual
  4. then and only then
  5. just now
  6. (before an expression of quantity) only
=6 cái
  1. (variant of cái) just now
  2. (variant of cái) (before an expression of quantity) only
=7 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=7 shì variant of shì
8 一把 a bunch of; a bundle of
=9 Dāo surname Dao
=9 dāo
  1. (slang) (loanword) dollar
  2. classifier for sets of one hundred sheets (of paper)
  3. classifier for knife cuts or stabs
  4. (Internet slang) to bargain; to ask for a small discount (esp. on second-hand marketplaces)

classifier: