激光技术的每一次突破都让我们更接近解决困扰科学家数十年的谜题。
Every breakthrough in laser technology brings us closer to solving mysteries that have puzzled scientists for decades.
创新是企业家精神的特定工具。
物体的加速度与所受的合外力成正比，与物体的质量成反比。加速度的方向与合力的方向相同。
The true value of a human being is determined primarily by the measure and the sense in which he has attained liberation from the self.
A 'performative' utterance is not true or false， but happy or unhappy.