求翻译这段（Python相关

碗碗的泡菜坛

Figure 2-1 helps visualize how mutable sequences differ from immutable ones, while also inheriting several methods from them. Note that the built-in concrete sequence types do not actually subclass the Sequence and MutableSequence abstract base classes (ABCs) depicted, but the ABCs are still useful as a formalization of what functionality to expect from a full-featured sequence type.


Figure 2-1. UML class diagram for some classes from collections.abc (superclasses are on the left; inheritance arrows point from subclasses to superclasses; names in italic are abstract classes and abstract methods)

百日维新

图 2 - 1 的帮助形象化表达可变序列与不可变序列的不同，然而也从他们继承几个方法。
注意，内置的具体序列类型实际上不是序列和可变序列描述抽象基类描述的子类，但抽象基类仍然是扩展为全功能的序列类型函数有用的形式。
图 2 - 1 UML 类用图解法表示了 abc 集合中的某些类。（左边是父类；继承箭头是从子类指向父类，斜体名是抽象类和抽象方法）

百日维新

不好意思，不懂python ， 字面意思是这样，隐含的意思就翻译不了