neurotransmitter
🇺🇸
/ˈnʊrəʊtrænzmɪtər/
🇬🇧
/ˈnjʊərəʊtrænzmɪtə(r)/
A substance that helps brain cells communicate with each other.
Serotonin, a type of neurotransmitter, plays a role in how we feel happy.
血清素是一種神經遞質,它在我們感到快樂的過程中起作用。