The symptoms tend to recur.

There is a danger that the disease may recur.

这种病有复发的危险。

They usually disappear over several weeks and do not recur.

结节常在数周后自然消退,复发不常见.

The same old favourites recur year in year out with monotonous regularity.

一些相同的老嗜好年复一年地以单调的规律重现.

Does history / the past repeat itself? ie Do similar events or situations recur?

历史[过去的事件]还会重演 吗 ?(类似的事情或情况还会发生 吗 ?)

Two themes recur throughout our discussion of welfare economics.

两个主题再次出现在我们关于福利经济学的讨论中.

The dream recur throughout her life.

这个梦在她的一生中反复出现.

We to recur to arms for guarding our national dignity.

为了捍卫国家的尊严,我们不得不诉诸武力.

The army will recur to the use of force.

军队将会借助于武力.

I will recur to the history of this bridge later.

我待会将会提到这座桥的历史.

...a recurring nightmare she has had since childhood.

一个从她童年起就不断出现的噩梦

Let us recur to the problem discussed last night.

让我们再谈谈昨晚讨论的问题吧.

Let us recur to what was said at this morning's meeting.

让我们回忆一下今早会上所说的.

a recurring illness/problem/nightmare, etc.

反复发作的疾病、反复出现的问题、一再出现的噩梦等

The event constantly recurred to me.

那事件不断地浮现在我脑海里.

The scene has often recurred to my memory.

那情景常浮现在我脑海中.

Results: Followed up between 5 months and 2 years, no case recurred.

结果: 15例均治愈,随访5个月~年无复发.

Old memories constantly recurred to him.

往事经常浮现在他的脑海里.

The idea of being a clown recurred to him now , only to fill him with disgust.

当小丑的念头又在他脑海闪现, 结果弄得他很难受.

My memory unavoidably recurred to former times with a sort of oppressive sadness.

我不可避免地怀着一种压抑的悲哀回忆往日.

Old memories often recurred to him.

往事常常重新浮现在他的心头.