In characterizing a society, whether ancient or modern, there are two elements, rather closely interconnected, which are of prime importance: one is the economic system, the other the family system.
不敢古代还是现代，社会的特征具有两个相互联系紧密的重要要素，一个是经济体制，另一个是家庭体制。
221. primitive 原始的
It is revealed that even in modern world there are still several peoples with only “primitive mind ”.
研究表明，即便在现代社会，仍然存在一些仅具有“原始思想”的民族。
222. dramatic 引人注目的
There are same dramatic technological changes that have provided marketers with more communications choices.
存在一些同样引人注目的技术改变，这些改变给营销人员提供了更多的沟通选择。
223. academic 学术的
Professionalism has turned the acquisition of a doctor degree into a prerequisite for a successful academic career.
专业化使得获得博士学位成为成功学术生涯的先决条件。
224. appropriate 恰当的
There is no agreement whether methodology refers to the concepts peculiar to historical work in general or to the research techniques appropriate to the various branches of historical inquiry. 方法论究竟指历史研究普遍特有的概念，还是指适用于历史探究各分支领域的研究技术，目前还没有达成一致。
225. sufficient 充分的
Doctors could not give patients sufficient medication to control their pain if that might hasten death.
医生们不能给患者使用可能加速死亡的充足的药物来缓解他们的痛苦。
226. adequate 充足的
To serve as responsible stewards of the planet, we must press forward on deeper atmospheric and oceanic research. But research alone is inadequate .
为了当好我们星球的管理员，我们必须推进更加深入的大气和海洋研究，但仅做研究是不充分的。
227. primary 主要的
The U.S. workforce was derided as poorly educated and one of primary cause of the poor U.S. economic performance.
美国的劳动力被嘲笑为受教育程度差，并被认为是美国糟糕的经济表现的主要原因。
228. speculative 推测的，投机的
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