The arithmetic of modular forms is a key to understanding the deeper mysteries of number theory.
能源转型不是是否会发生的问题，而是如何以及何时发生的问题。
The most important thing in the Olympic Games is not winning but taking part； the essential thing in life is not conquering but fighting well.
电子学的未来掌握在那些能够操纵电子的人手中。
The true value of a forest cannot be measured in board feet alone.