真相很少纯粹,也绝不简单。
膨胀宇宙模型为宇宙的起源提供了一个可能的解释。
In the end, the success of any technology is determined by its ability to solve real-world problems.
你唯一能控制的就是你的努力和态度。
The value of an economic model lies in its ability to explain and predict.