My words in her mind: cold polished stones sinking through a quagmire.
This was a very short visit, but it plunged the little prince into deep dejection.
The concept of probably approximately correct (PAC) learning has been foundational in computational learning theory.
投资者应避免基于恐惧或贪婪做出决策。
Sustainability is not just about technology, it's about creating a whole new ecosystem.
The world is not a problem to be solved; it is a living being to which we belong.