Edge这个词汇可以在不同的情景下有不同的意义，但总体来说代表着“边缘”或“尖端”的含义。下面就是一些用“tip”、“border”等词汇替换“edge”的例句。
1. The sharp edge of the knife needs to be handled with care. (这把刀的锋利边缘需要小心处理。)
- The sharp tip of the knife needs to be handled with care.
- The sharp border of the knife needs to be handled with care.
2. The company is on the cutting edge of technology and innovation. (这家公司处于科技和创新的尖端。)
- The company is on the forefront of technology and innovation.
- The company is at the tip of technological advancement and innovation.
- The company stands at the border of technological progress and innovation.
3. The cliff had a sheer edge that made it dangerous to approach. (这个悬崖有一个陡峭的边缘，使得接近它变得危险。)
- The cliff had a sheer tip that made it dangerous to approach.
- The cliff had a sheer border that made it dangerous to approach.
4. The situation was on a knife-edge and could go either way. (这种情况非常微妙，可能会朝任意一方的方向发展。)
- The situation was on a delicate tip and could go either way.
- The situation was on a precarious border and could go either way.
总而言之，“edge”这个词可以通过使用诸如“tip”、“border”等词汇来表达同样的含义，而且还可以使句子更加生动有趣。
