tryptophan proteinochromogen

• 色氨酸

tryptophan proteinochromogen的用法和样例：

例句

1. Once in the brain, the tryptophan is converted to serotonin.
   一旦进入大脑，色氨酸会被转化成血清素。
2. She rates dozens of foods for their levels of tryptophan.
   她对数十种食物的色氨酸水平进行了估计。