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Jyutping sang1 zoeng6 gaau1
Pinyin shēng xiàng jiāo

Definitions (Wiktionary)
  1. noun
    raw rubber; caoutchouc
    (syn.) 生膠, 生胶, 生奶
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)