单词	L-tryptophan
释义	L-tryptophan noun L-tryp·​to·​phan ˈel-ˈtrip-tə-ˌfan  : the levorotatory form of tryptophan that is a precursor of serotonin and was used formerly as a dietary supplement especially to promote sleep and relieve depression Word History First Known Use 1949, in the meaning defined above Medical Definition L-tryptophan noun L-tryp·​to·​phan ˈel-ˈtrip-tə-ˌfan  : the levorotatory form of tryptophan that is a precursor of serotonin and was formerly used in some health food preparations in the belief that it promoted sleep and relieved depression see eosinophilia-myalgia syndrome
随便看	mindset mindsets mindshare mine mine brown 3go mine detector mine inspector mine pig mine planter mine tri mine worker mine-run mineable minecraft mined minefield minefields minehead minehunters minelayer minelayers minelayings mineowner miner miner's inch

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