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Jyutping syut3 bat1 zeon2
Pinyin shuō bu zhǔn

Definitions (Wiktionary)
  1. verb
    to be unable to speak about with confidence
  2. adv
    maybe; possibly

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Jyutping syut3 bat1 zeon2
Pinyin shuō bù zhǔn

Definitions (CC-CEDICT)
  1. unable to say
  2. can't say precisely
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    谁也说不准实际上将会发生什么事。
    誰也說不準實際上將會發生什麼事。
    shuí yě shuō bù zhǔn shí jì shàng jiāng huì fā shēng shén me shì 。
    • What will actually happen is anyone's guess.
    • What'll actually happen is anyone's guess.