不當家不知柴米貴 [－当－－－－－贵]

Jyutping bat1 dong1 gaa1 bat1 zi1 caai4 mai5 gwai3
Pinyin bù dāng jiā bù zhī chái mǐ guì

Definitions (Wiktionary)
  1. proverb
    managing a family is not easy, and requires responsibility

不當家不知柴米貴 [－当－－－－－贵]

Jyutping
Pinyin bù dāng jiā bù zhī chái mǐ guì

Definitions (CC-CEDICT)
  1. a person who doesn't manage a household would not be aware how expensive it is (idiom)