英语语法分析

Evidence of early stages of arithmetic and numeration can be readily found.

我们很容易找到早期算法和计算的证据。

Even the earliest of tribes had a system of numeration that, if not advanced, was sufficient for the tasks that they had to perform.

即使是最早的部落也有一种计算系统，哪怕不先进，也足以完成他们必须执行的任务。

It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time humans had formed even semi-permanent settlements.

我们永远也不会知道这种计算能力是何时、如何发展起来的，但可以肯定的是，在人类形成半永久定居点的时候，这种计数法已经发展得很好了。