褪黑素 [－－－]

Jyutping tan3 hak1 sou3
Pinyin tuì hēi sù

Definitions (Wiktionary)
  1. noun
    melatonin

褪黑素 [－－－]

Jyutping
Pinyin tuì hēi sù

Definitions (CC-CEDICT)
  1. melatonin