了解历史对于了解我们自身作为一个民族和一个国家都是至关重要的。
Understanding history is vital to understanding ourselves as a people and as a nation.
请观赏国家地理频道《历史奇案》，以了解更多故事。
Find out more on National Geographic Channel's History's Secret.
研究这个国家时，了解其背后的历史尤为重要。
In examining this country it is important to understand the history behind its present existence.
了解你的国家，了解你的世界，了解你的历史，了解你自己。
Learn to listen and speak well. Know your country, know your history, know yourself.
了解你的国家，了解你的世界，了解你的历史，了解你自己。
Learn to listen and speak well. Know your country, know your history, know yourself.
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