历史上

• The concept of ecology finds its immediate historical origins in darwin's "web of life" .
  生态学这一概念从历史上说直接源于达尔文的“生命之网”。
• As he looked back upon man moving through history, he was haunted by a feeling of loss .
  当他回顾着古往今来历史上的人类时，就受到一种失败感的侵袭。
• Tensions burst into the most awful outbreak of interracial warfare in the history of the united states .
  紧张气氛突发为美国历史上最可怕的种族冲突。
• This is the ineffaceable track of the greatest single avalanche in recorded history .
  这是在有文字记载的历史上最大的一次崩落所留下的难以消除的痕迹。
• Nor did every member of the intellectual elite who graced the board that evening go down in history .
  光临那顿晚餐的各位名流也没有在历史上留下名字。
• They aspired to national and european foundations that had few roots in italian history .
  他们渴望在全国和欧洲打下基础，而这在意大利历史上却没有什么根基。
• It may be that you will have thrown light on some important points in the history of your country .
  很可能你们会帮助弄清楚你们国家历史上的某些重要问题呢。
• Concentration of control of mass media has congealed at a tenuous time in american history .
  大众传播媒介的集中控制是在美国历史上一个软弱无力的时期形成的。
• History knows many more armies ruined by want and disorder than by the efforts of their enemies .
  历史上由于匮乏和混乱而毁掉的军队，比毁于敌人的努力多得多。
• With widespread approval and support the united states thus went back on its historic policy .
  在普遍的赞成和支持之下，美国就这样背叛了它历史上有名的政策了。