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.

未来能源存储的关键在于新材料和创新技术的发展。

Efficiency in markets often depends on how well information is transmitted.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

假如我梦见你爱我，你休怪，醒来，我空余泪眼。

Every match is a new opportunity to learn something.