可是时过境迁，那已经成为尘封的历史。
美国太空署发布了一些惊人的照片，描述了人类太空之旅背后尘封的历史。
Incredible photographs depicting the history behind man's journey into space have been released by NASA.
历史不仅仅是研究尘封已久的古老物品和过去已久的事情。
History is much more than the study of dusty old objects and events long past.
日渐融化的冰雪可以解开尘封许久的古老秘密，然而，温暖的气候也让很多历史遗迹陷入危机之中。
Melting ice can help unlock ancient secrets, but warming temperatures could imperil many more historic sites.
流逝的时间尘封了历史，不少敏感的史实是常人无法知道的。
The passage of time, many historic concealed is sensitive to the normal cannot know the facts.
他未出版的危地马拉研究一直尘封在匹兹堡大学的档案馆，直到最近才被医学历史学家里维尔比教授发现。里维尔比教授已经著有两部关于塔斯基斯研究的书。
His unpublished Guatemala work was unearthed recently in the archives of the University of Pittsburgh by Professor Reverby, a medical historian who has written two books about Tuskegee.
也不要问我的过去，因为那不是我和你的故事，而且永远将成为历史，我决定永远尘封，不再提及；
Do not ask my past, because that's not my story with you, and never will become history, I decided to dust forever, no longer mentioned;
令人感伤的是那些日子都已经逝去，普通的一只铅笔中蕴含着的手艺、技巧和荣耀只会尘封于历史了。
Sadly those days are over and the craftsmanship, skill and pride once put into the ordinary pencil is but a thing of the past.
它们是尘封历史的见证者，为后人学习研究中国古代史创造了大量的证明实物。
They are the witnesses of Chinese history and provide many clues for us to research ancient history of China.
探访那些古堡吧，开启苏格兰那尘封千年、风起云涌的历史遗存吧。
Visit the castle and uncover 1,000 years of Scotland's tumultuous past.
这位本不该被遗忘的中国早期图书馆学人，其图书馆学著述却长期被尘封在历史深处，其不乏真知灼见的图书馆学思想至今仍处于被遮蔽状态。
Yet, it is a pity that this great scholar of early Chinese library science is on the verge of being neglected in history, with his works and his incisive idea…
这位本不该被遗忘的中国早期图书馆学人，其图书馆学著述却长期被尘封在历史深处，其不乏真知灼见的图书馆学思想至今仍处于被遮蔽状态。
Yet, it is a pity that this great scholar of early Chinese library science is on the verge of being neglected in history, with his works and his incisive idea…
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