数学中最重要的是理解概念,而不仅仅是记忆公式。
Collaboration across nations is key to preserving marine ecosystems.
自由的功用就是解放他人。
I don't think of myself as a celebrity. I think of myself as an actor who's had some success.
"历史是由胜利者书写的,但真相往往藏在失败者的沉默中。"