| 2. | Common childhood developmental problems include attention deficit , hyperactivity disorder , dyslexia , autistic spectrum disorder , language delay , developmental delay , mental retardation , developmental coordination disorder , cerebral palsy , as well as visual and hearing impairment 常见的儿童发展问题包括专注力失调、过度活跃症、读写障碍、自闭症、言语发展障碍、发展迟缓、智力障碍、动作协调障碍、脑麻痹、视障及弱听。 |