HTML的历史一直存有争议。

The history of HTML has been controversial at every turn.

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事实上，历史学家对洞穴壁画——如拉斯考克斯（Lascaux）壁画——的含义存有争议。

In fact, archeologists still debate the meaning of cave paintings such as those at Lascaux.

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其历史分部强调研究美国历史和保存有美国特色的文物；

Its historical division stresses the study of U. S. history and preservation of Americana.

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Now, for a long time in American scholarship and in American classrooms one of the deep mythologies about this whole story of the era of the American Civil War in the Old South is that the Old South's plantation economy was dying out.

在很长的一段时间中,美国学术界和美国课堂,对于这个时代内战前的南方历史,存有一个疑点,就是当时南方的种植园经济正在逐渐衰退

耶鲁公开课 - 美国内战与重建课程节选