The future of coal depends on balancing economic growth with environmental care.
煤炭的未来取决于经济增长与环境保护之间的平衡。
A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.
农业现代化不是简单的机械化,而是整个产业链的智能化升级。
The most powerful leadership tool you have is your own personal example.
其实世事并无好坏,全看你们如何去想。
里氏替换原则是面向对象编程中的一个基本概念,确保派生类可以替代其基类使用,而不会改变程序的正确性。