Onset: the disease may recurrently attack for many years.

此病可多次反复发作，持续多年。

It will become persistent, more and more severe as the disease recurrently attacks.

随着疾病的反复发作，听力下降将变为持续性的，而且越来越严重。

Moreover, a method of transforming polygon is proposed to recurrently optimize power supply network, and it results in a cost lowest network.

同时提出了多边形变换的方法，对供电网络逐次优化，最终得到一个费用最小化网络。

The solutions below are descriptions of how these issues have been recurrently solved and may serve as a pattern to help you on your next project.

下面的解决方案描述了这些问题是如何循环地解决的，并且可以作为模式用于下一个项目，以助您一臂之力。

This, of course, is what we've studied recurrently and, I have to say, empirically because these are all empirical facts about language, as the Russian formalists insisted.

这当然是我反复地，以经验主义方式研究的，因为这些都是语言的经验主义的事实，正如俄国，形式主义者坚持的。

This is, of course, disputable. There is a kind of a vogue recurrently in the history of fiction for a kind of miraculous sense that this is just exactly the way things are.

这个，当然，是有讨论余地的，这是一个趋势，循环地在小说历史中出现，为了一种不可思议的理由，说事情就是这样的。

In this paper, we give the definition of the recurrently weak-mixing operators in the discrete case, and obtain a sufficient condition under which the product of two operators is weak-mixing.

本文给出在离散情形下回复弱混合算子的定义，并给出两个算子的积是弱混合的一个充分条件。