And after the periodic table was developed in the late 1800's, people didn't understand this quite as well, they took things a little more literally.

在十九世纪后期元素周期表经过发展之后，人们还没有很好地意识到这一点，他们的认识还有些粗浅。

麻省理工公开课 - 化学原理课程节选

The most extreme critics of the traditional point of view would say over centuries, that you don't get the full-blown hoplite phalanx that I will be describing to you, even until you get the fifth century B.C.

对传统观点批判最激烈的一种观点,认为这一新型战术,是经过数百年,甚至到了公元前五世纪,才逐渐发展成熟的

耶鲁公开课 - 古希腊历史简介课程节选