Children with attention deficit hyperactivity disorder exhibit a range of symptoms.

患有多动症的儿童会表现出一系列的症状。

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Children with the severest for m, called "attention deficit hyperactivity disorder", exhibit such disruptive behaviour that it impairs their learning and function at home and at school.

多动症最严重的一种形式叫做“注意缺陷多动障碍”，患这类多动症的孩子，其行为的破坏性甚至严重到影响他们的正常生活和学习。

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Attention Deficit Hyperactivity disorder, ADHD, is one of the most common mental disorders that develop in children.

注意缺陷多动症是儿童在成长中最常见的心理障碍之一。

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Many are concerned that Ritalin and similar drugs, which aid concentration in those with Attention Deficit Hyperactivity Disorder, are chemical straightjackets that prevent children from taking full responsibility for themselves.

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The advice also stresses the need to make sure that children take medicine for conditions such as attention deficit hyperactivity disorder or for behavioural problems on the trip.

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One of the children they placed was a ten-year-old boy with attention deficit disorder and hyperactivity.

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