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Jyutping saam3 si1 ji4 hang4
Pinyin sān sī ér xíng

Definitions (粵典–words.hk)
  1. x
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)

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Jyutping saam1 si1 ji4 hang4
Pinyin sān sī ér xíng

Definitions (CC-CEDICT)
  1. think three times then go (idiom); don't act before you've thought it through carefully
Definitions (Wiktionary)
  1. phrase, idiomatic
    look before you leap
    (syn.) 三思而後行, 三思而后行