全新世的沉积物中含有较新的动植物遗迹，因此很容易从地质学上区分这两个时期。

Holocene sediments contain remnants of more recent plants and animals, so it's pretty easy to differentiate geologically between these two Epochs.

youdao

在这两个时期间，地球的运作方式有所不同。

The Earth worked differently in the two periods.

youdao

这两个时期用于提供与去年的同期比较，这对于财务分析十分重要。

These two periods are used to provide year-over-year comparisons, which are very important in financial analysis.

youdao

It suggests both the difference between the earlier Yeats and the middle Yeats, but also importantly the kinds of continuity between them the ways in which Yeats remained very much the same poet.

这首诗表明了叶芝,早期和中期作品的差别，但很重要的是这两个时期,存在着一种延续性,叶芝作为诗人基本还是那样。

耶鲁公开课 - 现代诗歌课程节选

So those are like the two big times.

所以这就是两个关键时期。

是考试期间 - SpeakingMax英语口语达人