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Jyutping saan3 gaang1 lo4
Pinyin sàn gèng luó

Definitions (粵典–words.hk)
  1. x

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Jyutping saan3 gaang1 lo4
Pinyin sàn gēng luó

Definitions (CC-CANTO)
  1. verb; alert or alarm sound from the night watch from 5am, to wake people up (used before clocks were introduced in China). It means it is very noisy, need everyone to know