I'm not a person who likes to be in the middle.
Sometimes the things that are most real are the things you can't see.
Sustainability isn't just a trend; it's a responsibility for future generations.
历史既非无爱亦非无恨地书写或创造。
自旋玻璃的数学揭示了一个适用于许多看似无关问题的隐藏结构。
The blood in the animal body is impelled in a circle, and is in a state of ceaseless motion.