Language disabilities: slow language development, marred by grammatical mistakes, odd inflection or indistinct pronunciation; inability to communicate despite possessing language abilities; talking to themselves or constantly repeating the same words; some possess no language ability at all.
二、語言障礙：自閉兒語言發展遲緩。有的語法錯誤、腔調異常或咬音不正確；雖有語言，卻不能與人溝通；自言自語，或不斷復誦同一句話，而不知其意，有的甚至沒有語言。