serotonin
noun [ U ] uk/ˌse.rəˈtəʊ.nɪn/ us/ˌse.rəˈtoʊ.nɪn/
血清素
a neurotransmitter (= a chemical in the body that carries messages from the brain) that helps you feel relaxed and happy
英汉双解词典收录81607条英汉双解翻译词条,基本涵盖了全部常用单词的读音、翻译及用法,是英语学习的有利工具。