地球形状的问题本质上是引力和旋转共同作用下的平衡问题。
Every genome is a unique historical document.
理解人类认知的关键在于理解符号是如何被操作的。
The value of life lies not in the length of days,but in the use we make of them.
Never underestimate the power of hard work and perseverance.
当没有人相信你时,你必须相信自己。