Level 6 · word 15,157 of 20,000

serotonin

/ˌserəˈtoʊnɪn/ American
  • n. 血清素
Definition
  • n. a chemical in the body that affects mood and feelings of well-being
Example
Exercise can help increase serotonin levels and improve your mood.
运动有助于提高血清素水平,改善情绪。