kě​bu​shì HSK7

not

kě​bu​shì not · [rhetorical question]

  1. adverb
    [emphasis]
    Used to emphasize a point, express a strong contrast to expectation, or add force to a question or command; often used with le, ne, or la at the end of the sentence.
  2. adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  3. to be
    to be; to correspond to; connects a subject to its identification, characterization, or identity

kě​bu​shì exactly

  1. adverb
    [emphasis]
    Used to emphasize a point, express a strong contrast to expectation, or add force to a question or command; often used with le, ne, or la at the end of the sentence.
  2. adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  3. yes
    used to express agreement, confirm a fact, or acknowledge a command, meaning "correct", "right", or "very well"