1. 认识这个词（基础篇）
词：edge
英英释义：something that gives you an advantage over others
例句：Being able to speak good English is widely considered an edge in China.
2. 体会这个词 （进阶篇）
“edge”作名词最基本的意思是“边缘”“刀刃”，不过它也常可以引申表示“优势”，我们可以用它来替换“advantage”。
As far as job hunting is concerned, experience is an absolute edge
使用“edge”时，最常见的一个搭配是“A has an edge over B”，表示 A 比 B 更好。
First- and second-tier cities always have an edge over other cities in terms of cultural diversity and job opportunities.
另外，常和“edge”搭配的动词有“maintain”（保持）和“lose”（失去）
It seems the US is losing its immigrant edge, but it has maintained its military edge.（建议把这个句子背下来）
想表达在某人或某物在某一方面有优势，我们可以在“edge”前添加相应的形容词。
Indeed, the assumption that America is losing its innovative edge is open to question.
作业:
1）翻译下面的句子：
这款新的电动汽车将会优于它的竞品。
This new electric car has an edge over its rivals.
造句:
Indeed, the assumption that America is losing its competitive edge is open to question.
