学习在于改变介于刺激和反应之间的某些中介过程。
青春不是年华,而是心境;青春不是桃面、丹唇、柔膝,而是深沉的意志,恢宏的想象,炙热的恋情;青春是生命的深泉在涌流。
是时候在女性行为中引发一场革命了——是时候恢复她们失去的尊严了。
儿童首先发挥功能的是感觉器官。
The future of energy is not about choosing between fossil fuels and renewables, but about finding the right balance that ensures reliability, affordability, and sustainability.