短語詞組短語mental l retardation 智力落後;弱智;智力遲鈍mental development retardation 精神發(fā)育遲滯education for mental retardation 智能障礙教育Profound mental retardation 極重度精神發(fā)育遲滯;深度智能不足;極度智能不足;極重度精神發(fā)育遲緩mental retardation MR 精神發(fā)育遲滯;智力低下mental retardation in children 弱智兒童Topics on Mental Retardation 智能障礙研究 返回 mental retardation