不當家不知柴米貴

bùdāngjiābùzhīcháimǐguì ㄅㄨˋ ㄉㄤ ㄐㄧㄚ ㄅㄨˋ ㄓ ㄔㄞˊ ㄇㄧˇ ㄍㄨㄟˋ

    • a person who doesn't manage a household would not be aware how expensive it is (idiom)

Character by character

Sources