为了避免批评,什么都不做,什么都不说,什么都不是。
地球是一个动态的行星,其内部热量是地质变化的驱动力。
"The most important thing is to stay courageous."
The study of mathematics is a journey into the unknown, where each discovery opens the door to new mysteries.
The future belongs to those who can balance economic growth with environmental protection.