typesafe heterogeneous container 类型安全的异构容器
As discussed, the tuple type is an immutable heterogeneous container.
如文中所述，tuple类型是不可变的异构容器。
Fortunately, a tuple is more flexible than these examples have shown, as a tuple is actually a heterogeneous container (see Listing 7).
所幸的是，tuple要比显示的示例复杂得多，因为tuple实际上是一个异构容器(参见清单7)。
The list is a heterogeneous mutable container, which means it can hold different types of objects and can be modified after it has been created.
list是异构可变容器，这意味着它可以存放不同类型的对象且创建后可以修改。
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