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Jyutping tung4 sou3 ji6 jing4 tai2
Pinyin tóng sù yì xíng tǐ

Definitions (CC-CEDICT)
  1. allotropy
Definitions (Wiktionary)
  1. noun
    allotrope
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)