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Jyutping seoi4 zi1 dou6
Pinyin shuí zhī dào

Definitions (Wiktionary)
  1. phrase, rhetoric
    who knows
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #3607

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Jyutping seoi4 zi1 dou6
Pinyin shéi zhī dào

Definitions (CC-CEDICT)
  1. God knows...
  2. Who would have imagined...?
Definitions (Wiktionary)
  1. phrase, rhetoric
    who knows
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    谁知道?
    誰知道?
    shéi zhī dào ?
    • Who knows?
    • Who knows!
  2. Mandarin
    有谁知道如何在经济萧条的时候赢得金钱?
    有誰知道如何在經濟蕭條的時候贏得金錢?
    yǒu shéi zhī dào rú hé zài jīng jì xiāo tiáo de shí hou yíng dé jīn qián ?
    • Does anyone know how to make money in a time of crisis?
  3. Mandarin
    谁知道胡锦涛的生日?
    誰知道胡錦濤的生日?
    shéi zhī dào hú jǐn tāo de shēng rì ?
    • Who knows Hu Jintao's birthday?
  4. Mandarin
    还有谁知道它?
    還有誰知道它?
    hái yǒu shéi zhī dào tā ?
    • Who else knows about it?
  5. Mandarin
    谁知道汤姆去了哪儿。
    誰知道湯姆去了哪兒。
    shéi zhī dào tāng mǔ qù le nǎ er 。
    • Who knows where Tom went?