每日一词 196 recur

recur： if something, especially something bad or unpleasant, recurs, it happens again

进阶篇：recur 是不及物动词，意思是反复出现。可以用来替换 happen again.根据英英释义，它前面的主语常是负义向意义的名词。

我们常说的下不为例，也就是说同样的事情不要再发生了。这时就可以用recur.比如，如果再作弊，你将会被开除。If the cheating recurs, you will be expelled.

我们常说如果只是治标不治本的话，存在的问题还会重复发生。

Problems are likely to recur if you are just treating symptoms rather than getting to the bottom of the mess.

有些疾病在手术后也有复发的危险：

Surgical success rates vary widely, so there is a danger that the illness may recur. 

《经济学人》用例：

1) Concerns about local balance-sheets in China have recurred over the past decades.

2) Widespread violence that had marred latest elections in 2008 had not so far recurred.

3) The plague recurred sporadically until the 19th century. 

应用篇：

1） 翻译下面的句子：我们必须保证问题不会发生。

We must make sure that the problem does not recur. 

2) 造句：新买的电脑死机了好几次，卖家承诺如果这个问题继续反反复复，就免费换一个。

My new computer has crashed several times. The retailer promises that if the problem recurs, he will deliver me a new one.