发作性嗜睡病fā zuò xìng shì shuì bìngfazuoxingshishuibingnarcolepsyCharacters in this word作to make发to issue, to dispatch, to send out嗜addicted to, fond of, with a weakness for性sex, nature, character病sickness, illness, disease睡to sleep, to dozeStudy it in Yanamino