The streets were dark with something more than night.
竞争均衡解决方案的存在与规范经济学或福利经济学之间的关系也许同样重要。
The beauty of science is that it allows us to explore the unknown and uncover the mysteries of life.
科学的美妙之处在于它让我们能够探索未知并揭开生命的奥秘。
"We must embrace a growth mindset, where we are constantly learning, adapting, and evolving."