The Liskov Substitution Principle is a fundamental concept in object-oriented programming, stating that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.
创新不仅仅是创造新产品；它关乎重新构想我们如何解决问题。
物体与物体之间产生的"间"，才是最重要的表现。
他们只用了片刻就砍下了那颗头颅，但法国可能在一个世纪内都无法再产生一个像他那样的人。
The future of energy lies in the integration of traditional and renewable sources. We must adapt and lead this transition.