古罗马帝国很庞大。

The Roman Empire was vast.

这些古代遗迹早于罗马帝国存在。

The ancient ruins predate the Roman Empire.

高卢最终被并入罗马帝国。

Gaul was eventually integrated into the Roman Empire.

哈德良在罗马帝国境内广泛旅行。

Hadrian traveled extensively throughout the Roman Empire.

罗马帝国是历史上最强大的帝国之一。

The Roman empire was one of the most powerful in history.

罗马帝国是历史上最著名的帝国之一。

The Roman empire is one of the most famous empires in history.

提图斯在公元79年至81年间统治罗马帝国。

Titus ruled the Roman Empire from 79 to 81 AD.

尼尔瓦在公元96年至98年间统治罗马帝国。

Nerva ruled the Roman Empire from 96 to 98 AD.

克劳狄乌斯以扩展罗马帝国而闻名。

Claudius was known for his expansion of the Roman Empire.

罗马帝国在公元2世纪初征服了达契亚。

The Roman Empire conquered Dacia in the early 2nd century.