高中生缺少基础的历史知识总体上是因为他们花更少的时间在学习基本社会学科上。
High school students' lack of a historical knowledge base can partially be explained by the decrease in class time spent on social studies at the elementary level.
这个团队正在研究其他历史事件的记录，比如登山事故以及911恐怖袭击，来检验时间对社会行为的影响。
The team is studying records from other historical episodes, such as mountaineering accidents and the September 11 attacks, to test the influence of time on social behavior.
他是日本历史上在位时间最长的天皇，在位63年间，日本社会发生了巨变。
His 63 year reign was the longest in Japan's history and he presided over a period of tremendous change in Japanese society.
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