宇宙不断给我们带来惊喜,这正是科学如此令人兴奋的原因。
我是一个战士,我非常坚定。
In business, if you're not moving forward, you're falling behind.
我不相信贫穷,我相信努力工作。
The struggle for survival is the essence of life.
The heart of the educator must be a living flame, a source of warmth and light.