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Jyutping jam4 syu1
Pinyin yín shū

Definitions (CC-CEDICT)
  1. obscene book
  2. pornography
Definitions (Wiktionary)
  1. noun
    erotic literature
    (syn.) 黄书, 黃書
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)