随着第三世界这个过时概念的终结，第一世界必须向观念和经验的竞争打开自己的大门。

With the end of the outdated concept of a Third World, the First World must open itself to competition in ideas and experience.

youdao

如果这两件观念没有得到满足，要想掌握玄学的概念是有困难的。

If these two concepts are not met, one will have trouble grasping the concepts of metaphysics.

youdao

它们取决于一个很不明确的概念，即省时这一观念本身。

They depend on a concept that is ill formed: the very idea of timesaving.

youdao

There was no separate caste of priests and there was very little concern, I don't mean any concern, but very little concern with life after death which was universally important in other civilizations.

没有独立的教会阶层,城邦里的人们很少关注来生这个概念,很少关注,不是说完全没有关注,此观念在当时的其他文明中是极为重要的

耶鲁公开课 - 古希腊历史简介课程节选