yǐ / xíng / nǎo / yán / shì / yì / zhǒng / yóu / wén / zi / chuán / bō / de / bìng / dú / xìng / jí / bìng乙型脑炎是一种由蚊子传播的病毒性疾病。Japanese encephalitis is a viral disease transmitted by mosquitoes.