The elegance of a mathematical proof often mirrors the efficiency of the algorithm it describes.

"Illustrations are not just pictures; they are the soul of the story."

过度捕捞是杀鸡取卵，我们必须坚持科学捕捞，给海洋留下休养生息的时间。

你在20多岁做出的选择将定义你的30岁及以后。