今天我们要学的词是spike。 Spike做为名词，有大幅度上升的意思，demand spike，就是需求的猛增，sales spike，就是销售的上涨。最近，美国开车上班的人又开始叫苦连天。这是因为， "We have seen a big price spike at the pump." 意思是最近油价涨得非常厉害。

最新数据显示，美国的暴力犯罪连续第二年上涨。美国司法部认为，"Increased violence among teenagers appears to have contributed to a nationwide crime spike," 意思是说青少年暴力行为的上升造成了全国犯罪数量的增加。好，今天我们学习的词儿是spike...

1 spike

n.长钉，钉鞋;v.以大钉钉牢，使...失效

参考例句：

The spike pierced the receipts and held them in order.那个钉子穿过那些收据并使之按顺序排列。

They'll do anything to spike the guns of the opposition.他们会使出各种手段来挫败对手。