褪黑素

tuì hēi sù

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Definitions

1. melatonin

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Child Words of 褪黑素

• 素 素 sù: raw silk
• 黑 黑 hēi: black
• 褪 褪 tuì: to take off (clothes)
• 褪 褪 tùn: to slip out of sth
• 黑素 黑素 hēi sù: melanin