时代主题，是指人类社会某一发展阶段中带有全球性、战略性和关乎全局的核心问题。是国际社会在一个较长时段里所面临的主要任务和主要课题。
灾荒和战乱，成为明清之际章回小说表现的一个重要的时代主题。
So famine and war became an important theme of the times in the novels of this period.
由于时代主题的转换，和谐思维已成为当今时代人们思维方式的理性选择。
With the shift of the topic of the period, harmonious thinking has become the reasonable choice of modern people in their mode of thinking.
古经为一诞生于西周时期的卜筮之书，但却内蕴着“人的发现”的时代主题。
Though the Text is a diving book coming into being in the Western Zhou dynasty, it conceives the theme of the time of the discovery of human.
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