The greatest gift you can give someone is your time, because you are giving them a portion of your life that you will never get back.
Theatre is a mirror that reflects the human condition.
唯一能让你成为传奇的是你的热情。
Sustainability should be at the core of every chemical company's strategy, not just an afterthought.
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。