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Jyutping zung1 seon3
Pinyin zhōng xìn

Definitions (CC-CEDICT)
  1. faithful and honest
  2. loyal and sincere
Definitions (Wiktionary)
  1. adj
    faithful and honest; loyal and sincere
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)