Discussion of 边缘/邊緣 [biān yuán] edge, brink, periphery, fringe - Trainchinese

1 - What other words could I use to express the same idea as 边缘 (biānyuán)? 2 - How do I use 边缘 (biānyuán) in a sentence? 3 - Are there any common phrases or idioms that include 边缘 (biānyuán)?

1 - 在表达与‘边缘’（biānyuán）相同概念时，我还能使用哪些词汇？2 - 我应该如何在句子中使用‘边缘’（biānyuán）？3 - 是否存在包含‘边缘’（biānyuán）的常见短语或成语？” }