New research suggests autistic children don't often express the latter type, a finding that could reveal more about the nature of human laughter.

新的研究表明，患自闭症的孩子不常表现出后一种笑，这一发现可能揭示出人类笑声更多的本性。

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The autistic children had on average 67 percent more neurons — a type of brain cell and a fundamental building block of the nervous system — than boys without autism of a similar age.

与同龄儿童相比，自闭症儿童的神经元数目平均要高出67%，神经元属于脑细胞的一种，是构成神经系统的基本单位。

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The autistic children had on average 67 percent more neurons — a type of brain cell and a fundamental building block of the nervous system — than boys without autism of a similar age.

与同龄儿童相比，自闭症儿童的神经元数目平均要高出67%，神经元属于脑细胞的一种，是构成神经系统的基本单位。

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