This one is characterized by the cycles of hypomania and dysthymic or persistent depressive episodes.

其特征是周期性的轻度躁狂和心境恶劣或持续性抑郁发作。

For example, one of the themes in Aeschylus' work is that violence is cyclical.

例如，埃斯库罗斯作品的主题之一是暴力是周期性的。

In Arles, van Gogh also began to experience periodic psychotic episodes.

阿尔勒，梵高也开始经历周期性的精神病发作。

Two broods of cyclical cicadas will emerge.

两代不同周期性的蝉群将出现。

California is riddled with geological fault lines that periodically ruptures the biggest.

加州到处都是周期性的地质。

Periodic surges have occurred ever since and have increased in magnitude and frequency this century.

自那以后，周期性的涌浪一直发生，本世纪的幅度和率都有所增加。

Not necessarily the very light trend you see here, but trending in periods.

并不必然是你这儿看到的轻微的趋势 可能是周期性的趋势。

Clearly there's an underlying structure and unity to things that seem to be complex and aperiodic.

显然有一个潜的结构和统一性，藏看似复杂、非周期性的事物之下。

There's probably still some trapped beneath the seasonally expanding and contracting carbon dioxide ice caps, though.

可能依然有一部分水存留周期性扩张和收缩的 二氧化碳冰盖下面。

Periodical cicada mass emergences are one of those once or twice in a lifetime kind of things.

蝉的周期性大规模出现一生中可能只有一到两次。

UNIDENTIFIED MALE: That's something we've seen in very small numbers periodically over the years.

这是我们多年来周期性地看到的一小部分现象。

To continue the species, he said billions of periodical cicadas will appear all at the same time.

劳普表示，为了种族延续，这种周期性的蝉会大批同时出现。

Commercial aviation is a lot more cyclical, a lot more volatile as we've seen through the pandemic.

商业航空的周期性更强，更不稳定，正如我们疫情看到的那样。

Two will continue playing but will have chronic problems with acute episodes along the way

五分之二会继续弹奏乐器但是会有周期性的问题，伴随着急性发作的病症。

The FTSE All-Share index is heavy with the kind of cyclical stocks that have been in favour recently.

富时全股指数中充斥着最近备受青睐的周期性股票。

They found dozens of pulsating stars in it, literally stars that changed their brightness in a regular, periodic fashion.

他们发现其中有几十颗脉动恒星，这些恒星以一种规则的、周期性的方式改变它们的亮度。

In addition to those, there is El Nino, the periodic and natural Pacific Ocean warming that affects weather worldwide.

除此之外，还有厄尔尼诺现象，即影响全球天气的太平洋周期性的自然变暖。

Milankovitch wondered if there might be a relationship between these complex cycles and the comings and goings of ice ages.

米兰柯维契觉得，这些周期性的复杂变化与冰川期的产生和消退也许存某种关系。

And it's kind of a cyclical thing.

这是一种周期性的事情。

So in other words, more big periodic outbreaks.

- 换句话说，更大规模的周期性爆发。