Add the following lines to the top of the rule class.

向规则类的顶部添加下列代码。

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The rule class is quite simple, typically containing only a single method.

规则类是十分简单的，典型情况下只包含一个方法。

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Listing 3 is a code snippet that shows how you can implement a rule class.

列表3是一个显示如何执行规则类的代码片段。

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In the overall attitude of the planter class and the leadership class of the American South by the 1840s and 1850s, some were born to rule and some born to be ruled.

美国南方的19世纪40年代和50年代时,在普遍的种植园主阶级观念,和领导阶级观念中,有些人天生是统治者,有些人天生是被统治者

耶鲁公开课 - 美国内战与重建课程节选

The conservative majority might find a way to craft a new rule limiting such class actions to more narrowly defined groups.

FORBES: Wal-Mart v. Dukes Ask Courts To Fix The World

The Supreme Court threw out the case, saying Rule 23 governing class actions requires a case to be capable of delivering classwide damages.

FORBES: Class Actions Take Another Hit As Supreme Court Rejects Comcast Antitrust Case

Before that they had known two centuries of splendid middle-class rule, when prosperous merchants in tall black hats had sent out ships to the far ends of Asia and, with the profits, sponsored De Hooch and Vermeer.

ECONOMIST: Princess Juliana of the Netherlands