知在变。世上没有绝对的“知”,只有相对的“知”;
The knowledge keeps changing. No "knowledge" on earth is absolute, all "knowledge" is relative.
经典电磁理论是四维协变的,相对论时空概念的改变是根本性的改变。
The change of time and space concept of theory of relativity is right-about.
因为快餐的价格正在相对减少,于是人们的体重变增加了。
As fast food has become relatively cheaper, so people have become fatter.
变是绝对的,不变是相对的。
变是绝对的,不变是相对的。
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