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一个人,如果不是他们留下的痕迹,又是什么呢?
The pursuit of mathematical truth is a deeply personal and profoundly universal endeavor.
解析:保持纯洁朴实的本性,减少私欲杂念,抛弃圣智礼法的浮文,才能免于忧患。
We wish to discuss a structure for salt of deoxyribose nucleic acid. This structure has novel features which are of considerable biological interest.
"A well-written biography is a resurrection of the past."
The next green revolution must be both productive and environmentally responsible.