idiot savant
noun /ˌɪdiəʊ sæˈvɒ̃/
/ˌɪdiəʊ sæˈvɑ̃ː/
(plural idiot savants, idiots savants
(from French) /ˌɪdiəʊ sæˈvɒ̃/
/ˌɪdiəʊ sæˈvɑ̃ː/
)- a person who has severe learning difficulties, but who has an unusually high level of ability in a particular skill, for example in art or music, or in remembering things
弱能特才，低能特才（有严重的学习障碍，但在艺术、音乐或记忆等方面有超常能力） 词源French, literally ‘knowledgeable idiot’.