过去是一个跟随我们的影子，永远存在，永远影响着我们的步伐。
The past is a shadow that follows us, always present, always influencing our steps.
Sustainability isn't a cost center; it's the greatest untapped profit pool of our generation.
量子世界和经典世界之间的界限并不像我们曾经认为的那样清晰。