a convenient way around this这里的around为什么表示绕开

Although the Supreme Court of the United States had prohibited intentional racial discrimination in jury selection as early as the 188 case of Strauder v. West Virginia, the practice of selecting so-called elite or blueribbon juries provided a convenient way around this and other anti-discrimination laws.

译文: 尽管美国最高法院早在1880年的斯特劳斯诉西弗吉尼亚州一案中就已经禁止了陪审团遴选中的蓄意种族歧视，但挑选所谓的精英陪审团或者蓝带陪审员的做法，却为绕开这一反歧视及其它反歧视法案提供了一条捷径。

a convenient way aroundhis and other anti-discrimination laws. 为绕开这一(反歧视)及其它反歧视法案提供了一条捷径。

想提问：这里的around是如何进行词性活用的呢？大概意思能够理解是绕开但是不太明白是怎么操作的！谢谢！