以下为句子列表：
英文: Developmental dyscalculia (DD) is a specific learning disorder impeding the ability of a child to acquire arithmetical skills.
中文: 摘要发展性计算障碍是一种阻碍儿童算术能力获得的特殊学习障碍。
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英文: Finnish researchers say they have found a gene they believe could be important in causing dyslexia, the most common learning disorder among children.
中文: 芬兰研究人员称，他们已经发现了一种基因。他们认为这种基因是引起诵读困难重要原因。诵读困难是孩童中普遍出现的学习杂乱现象。
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