历史不仅仅是事件的记录；它是一个民族的灵魂，是他们的梦想与奋斗。
The best edits are the ones you don't notice; they flow so naturally that the audience is completely immersed in the story.
The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.