λ演算本质上是一种纯粹抽象的函数理论。
Sustainability isn't an option; it's a necessity for the survival of our industry.
Every drop of oil should be used efficiently and responsibly.
理解程序的最好方法是尝试改变它。
The role of the educator is to empower students to become agents of change in their own communities.
教育者的角色是赋予学生权力,使他们成为自己社区中的变革推动者。