退黑激素 in English tui4 hei1 ji1 su4 Meaning

Meanings

• melatonin

Pinyin

tui4 hei1 ji1 su4

Literal

Literal explanation, with pronunciation and meaning of each character.

退tui4to retreat 黑hei1abbr. for Heilongjiang province 黑龍江|黑龙江[Hei1 long2 jiang1] 激ji1to arouse 素su4raw silk