今天精听的句子是:

The deal also provides a general formula for ending long-running tensions between the two countries over tax.

我们先来看看formula这个单词.formula最常见的意思是"公式,方程式,计算式",是数学用语。但在新闻当中,这个词的意思是"a particular method of doing or achieving sth 方法,方案",可以理解为原意的引申义,因为公式就是用来解决问题的.
They're trying to work out a peace formula acceptable to both sides in the dispute.
他们正在设法制定出一个争执双方都可接受的和平方案.
There's no magic formula for a perfect marriage.
没有一个达到完美婚姻的神奇方法.

Long-running 是一个合成词.在英语中,这类词的使用很是广泛.今天我们重点介绍下long-形式的合成词.
Long-standing: that has existed or lasted for a long time 存在已久的,悠久的
a long-standing relationship
长期的关系

Long-suffering: bearing problems or another person's unpleasant behaviour with patience 长期忍受的,容忍的
his long-suffering wife
他那长期受罪的妻子

Long-running: that has been continuing for a long time 持续时间长的

Over在这里做介词用,意思是"由于,关于"
an argument over money
为了钱的争吵