儿童孤独症是一种广泛性发育障碍，孤独症患儿存在着社会交往、言语发育、生活自理能力的缺陷，感知觉异常及一些问题行为。
Childhood autism is viewed as a pervasive developmental disorder (PDD), marked by deficits in social interaction, speech development, living skills, perceptual skills and maladjusted behavior.
脑血管破裂或阻塞可致突然的知觉丧失，而代谢异常（如糖尿病）或脑肿瘤所引起的昏迷则发病缓慢。
Coma caused by stroke can be sudden, while that caused by metabolic abnormalities (as in diabetes mellitus) or cerebral tumours comes on gradually.
脑血管破裂或阻塞可致突然的知觉丧失，而代谢异常（如糖尿病）或脑肿瘤所引起的昏迷则发病缓慢。
Coma caused by stroke can be sudden, while that caused by metabolic abnormalities (as in diabetes mellitus) or cerebral tumours comes on gradually.
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