1·If this is not your case, skip the metaclass and make your life (and that of your users) happier.
如果不属于这种情形，那就跳过元类，使您(和您的用户)的生活更加惬意。
2·Code will be generated automatically for edit parts of metaclass associations and stereotype associations if you choose to create the tooling for it.
如果您选择为它创建工具，就会自动为元类联合和固定模式联合的编辑部分自动产生代码。
3·If there is no icon defined in the profile, the icon corresponding to the metaclass extension will be used.
如果在这个配置文件中没有定义图标，这个对应元类扩展的图标就会被使用。
4·From comments to packages, including classes themselves, every concept in UML has a metaclass.
从注释到包，包括类本身，UML中的每个概念都有一个元类。
5·Contrary to popular belief, this is a job where most of the time you do not need and you do not want a custom metaclass.
跟流行的观点相反，这是一个在大多数时候都不需要而且不想要自定义元类的工作。