英语语法分析

One or more entries for each metaclass extension of each stereotype.

每个固定模型的元类扩展有一个或者多个条目。

Just select multiple items of the same metaclass, such as several attributes.

单单选择同一元类的多项，例如一些属性。

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。