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Jyutping zyun3 seon3 zik1 sai6
Pinyin zhuǎn shùn jí shì

Definitions (Wiktionary)
  1. phrase, idiomatic
    to be gone in an instant
    • 美好時光是那樣的短暫,宛若天空滑過的流星般轉瞬即逝。
      美好时光是那样的短暂,宛若天空滑过的流星般转瞬即逝。
      měi hǎo shí guāng shì nà yàng de duǎn zàn , wǎn ruò tiān kōng huá guò de liú xīng bān zhuǎn shùn jí shì .
      Happy times are so short; like a shooting star, they are gone in an instant.

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Jyutping zyun2 seon3 zik1 sai6
Pinyin zhuǎn shùn jí shì

Definitions (粵典–words.hk)
  1. 形容詞
    形容​一件​事​進行​得​好​快​,​眨​下眼​就​會​唔​見​咗
    to vanish/disappear in a flash
    • 呢個機會轉瞬即逝。
      呢个机会转瞬即逝。
      lei1 go3 gei1 wui6 zyun2 seon3 zik1 sai6.
      The chance's gone in a flash.
Examples (粵典–words.hk)
  1. Cantonese
    呢个机会转瞬即逝。
    呢個機會轉瞬即逝。
    lei1 go3 gei1 wui6 zyun2 seon3 zik1 sai6.
    • The chance's gone in a flash.
Examples (Wiktionary)
  1. Mandarin
    美好时光是那样的短暂,宛若天空滑过的流星般转瞬即逝。
    美好時光是那樣的短暫,宛若天空滑過的流星般轉瞬即逝。
    měi hǎo shí guāng shì nà yàng de duǎn zàn , wǎn ruò tiān kōng huá guò de liú xīng bān zhuǎn shùn jí shì .
    • Happy times are so short; like a shooting star, they are gone in an instant.