然而，香烟烟雾是否确实对儿童的大脑产生负面影响，或者是否是其他东西所起的作用，尚不明确。
However, it's still unclear if tobacco fumes actually take a toll on children's brains, or if something else is at play.
富有天赋的儿童经常被怀疑有多动症或者是其他行为问题。
Children who are gifted are often mistakenly suspected of having ADHD or other disabilities with behavioral elements.
以前确诊孤独症儿童，倾向将工作注意力集中在那些特殊教育班级，或者那些学校成绩表明有语言或者其他学习障碍的孩子们身上。
Previous efforts to identify children with autism have tended to focus on kids in special education classes, or those whose school records show they have language or learning problems.
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