on the edge of ,on the border of
问题描述：
on the edge of ,on the border of
答
第一个是在什么的边缘
第二个是指在分界处
答
on the edge of 著重于本体的边缘
on the border of 著重于本体与外体之间，也可指边缘
答
Longman字典的解释是（英文版的,看起来容易体会）[on the edge of something] close to the point at which something different, especially something bad, will happen:1.Their economy is on the edge of collap...