I know what I should focus on alr .

我知道要做什么了。

Application of purified alr is important for studying the pathogenesis of diabetic complications and structure based drug design .

在糖尿病并发症和按结构完成药物设计的研究工作中，纯品alr的应用可发挥重要作用。

Clean alr around the world , the law and practice of air pollution control in 14 countries in 5 continents .

净化空气：世界5大洲14个国家空气污染控制的法律与实践。