epochal

This led to the next epochal shift.

这导致了下一个划时代的转变。

Any system able to do that would be a truly epochal achievement, but such a miracle is not on the agenda of even the most advanced machine translation developers.

如果有翻译系统能翻译出这些因素，这将是划时代的成就；要知道，即使现在最先进的机器翻译研发机构也不敢将此作为研究目标。

To see why, consider another epochal shift in the development of a rising economic power.

来看看为什么。 考虑到在政府日益增长的经济实力下的另一个划时代的转变。