电子并非一个简单不可分割的实体,而是一个复杂系统,其行为只能通过量子力学定律来理解。
The city is a living organism, constantly evolving and changing.
Success is not about the money you make, it's about the difference you make in people's lives.
星星不仅仅是天空中的光点;它们是那些敢于仰望的人的梦想。