佐治亚的布莱克利县各个学校在学年中设定了‘无作业夜晚’。
Schools in Bleckley County, Ga., have instituted “no homework nights” throughout the year.
结果：铝作业工人的生物学年龄明显高于其时序年龄，平均高3.6岁。
The results showed that the biological age of Al-exposed workers was 3.6 years higher than their chronological age.
结果：铝作业工人的生物学年龄明显高于其时序年龄，平均高3.6岁。
The results showed that the biological age of Al-exposed workers was 3.6 years higher than their chronological age.
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