最低限度应有设备表一有限或无限序列的表达式的和。

The sum of a finite or infinite sequence of expressions.

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一个无限序列可以拥有任意多个元素，只会受到平台内存大小的限制。

An unbounded sequence can hold any number of elements, constrained only by the limits of your platform memory.

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显然，没有任何计算机语言或计算机能够存储无限序列 —— 它们能够存储的是惰性的 和无限制的 序列。

Obviously, no computer language nor computer can store an infinite sequence -- what they can store is a lazy and unbounded sequence.

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