Mathematics is not just a tool; it is a way of thinking.
气候变化是本世纪的战斗,我们必须赢得胜利。
I'm just trying to change the world, one sequin at a time.
Innovation is not just about technology; it's about people and how we work together to solve problems.
中心地的六边形排列是最大限度减少出行距离的最有效方式。
只保有你可一直携带的东西:掌握一些语言,熟悉一些国家,了解那些人民。让记忆成为你的行囊。