We consider that the ANITA members belong to the primitive groups because of their many plesiomorphies.

指出ANITA的成员由于包含大量的祖征，是属于原始的类群。

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However, such a problem is very difficult in general, even for primitive groups and it depends heavily on the understanding of abstract groups and the application of combinatorial tools as well.

然而，即使对于本原群，其次轨道的决定也是一个非常困难的问题，它依赖与人们对抽象群本身结构的了解和一些组合方法的应用。

youdao

However, such a problem is very difficult in general, even for primitive groups and it depends heavily on the understanding of abstract groups and the application of combinatorial tools as well.

然而，即使对于本原群，其次轨道的决定也是一个非常困难的问题，它依赖与人们对抽象群本身结构的了解和一些组合方法的应用。

youdao