封四 [－－]

Jyutping fung1 sei3
Pinyin fēng sì

Definitions (Wiktionary)

noun
back cover (of a book)
(syn.) 封底

Definitions (Kaifangcidian)

（沒有對應漢語詞彙）

封四 [－－]

Jyutping
Pinyin fēng sì

Definitions (CC-CEDICT)

back cover