里氏替换原则是面向对象编程中的一个基本概念,它指出子类的对象应该能够替换超类的对象而不影响程序的正确性。
The dairy industry must evolve with consumer needs, or we risk becoming irrelevant.
最终,我们都只是故事。
唯一能给你带来幸福的是你自己。
The most valuable asset of any company is its people.