tùn
to slip out of sth
to hide sth in one's sleeve
褪黑素
tuì hēi sù
(biochemistry) melatonin
褪下
tùn xià
to take off (trousers)
褪光
tuì guāng
matte (of a color etc)
褪去
tuì qù
to take off (one's clothes)
褪套儿
tùn tào r
(coll.) to break loose
褪色
tuì sè
(of colors) to fade
褪黑激素
tuì hēi jī sù
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