递归是一门伟大的艺术，使得程序的正确性更容易确认，而不需要牺牲性能，但这需要程序员以一种新的眼光来研究程序设计。
Recursion is a great art, enabling programs for which it is easy to verify correctness without sacrificing performance, but it requires the programmer to look at programming in a new light.
翻译是研究语言之间差异的一门科学，是研究如何把一门语言恰当地转换成另一门语言的艺术。
Translation is a science dealing with differences between languages and an art dealing with how to convert one language into another properly.
当好副职和下级是一门重要的领导艺术，该课题有其研究的价值和普遍的指导意义。
It is the most important leading arts to perform deputy leaders' or subordinate leaders' responsibility perfectly. This item is worthy of study and possess of instructional significance.
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