软件工程的目标是创建可靠、高效且易于理解和修改的系统。
The goal of software engineering is to create systems that are reliable, efficient, and easy to understand and modify.
中心地的等级越高，其服务的区域越大，此类中心地的数量越少。
The world is made of words, and if you know the words the world is made of, you can make of it whatever you wish.
The biggest risk is not taking any risk. In a world that’s changing quickly, the only strategy that is guaranteed to fail is not taking risks.
虽然我准备好成仁了,但这事赶晚不赶早。
地球是一个动态的物体，其表面在不断变化。