知识通过勤奋刻苦的学习即可掌握，但它或会因为过时而遭淘汰；
Knowledge can be learned through hard studying, but becoming out-of-date constantly.
他是一位善良、忠诚的朋友，一位勤奋刻苦的学生，他崇尚公平竞争。
He was a good and loyal friend, a hard worker, he valued fair play.
只要还有一个勤奋刻苦的学生，在一堆厚厚的教辅书中翻来翻去、搔首踟蹰，费力地寻找那似曾相识的题目和解答，我们就绝不会满足。
We can never be satisfied as long as there is still one hard-working student who has to be in perplexity and search arduously for a similar exercise from a high stack of books.
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