第二个特殊的协议是，描述模式的方法集将被赋予表明其角色的独特名称。
The second special protocol is that sets of methods describing patterns are given distinct names indicating their role.
第二个特殊的协议是，描述模式的方法集将被赋予表明其角色的独特名称。
The second special protocol is that sets of methods describing patterns are given distinct names indicating their role.
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