这些雕刻的某些特征让人得出它们年代久远的结论——这些设计完成之后显然有地质变化发生。

Certain features of these engravings lead to the conclusion that they are of great age—geological changes had clearly happened after the designs had been made.

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年代久远的起重机提起水泥和油桶。

Ancient cranes lift cement and oil drums.

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一个年代久远的星星可能通常会被当做年轻得多的星星。

An ancient star can often pass for a much younger one.

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Furthermore doesn't the study of old books often very old books ? risk overlooking the issues facing us today?

此外，研究这些巨著,通常年代久远,不会有忽略我们今日所面临议题的风险吗？

耶鲁公开课 - 政治哲学导论课程节选

And in that class, we study great works of western philosophy, like going back as far as Plato through Aristotle,

在这门课上，我们学习西方哲学的伟大作品，比如说通过亚里士多德讲到年代久远的柏拉图，

有趣的课程 - SpeakingMax英语口语达人