有備無患 [－备无－]

Jyutping jau5 bei6 mou4 waan6
Pinyin yǒu bèi wú huàn

Definitions (CC-CEDICT)
  1. Preparedness averts peril.
  2. to be prepared, just in case (idiom)
Definitions (粵典–words.hk)
  1. 語句
    事前​做好​準備​，​就​乜嘢​都​唔​洗​擔心
    (lit.) when things are well-prepared, there is no danger; (fig.) preparedness ensures security
    • 考試之前温好書就有備無患啦。
      考试之前温好书就有备无患啦。
      Revise before exam then you have nothing to worry about.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to be prepared against adverse events; just in case
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    有备无患。
    有備無患。
    yǒu bèi wú huàn 。
    • Forewarned is forearmed.
Examples (粵典–words.hk)
  1. Cantonese
    考试之前温好书就有备无患啦。
    考試之前温好書就有備無患啦。
    • Revise before exam then you have nothing to worry about.