我们在意大利旅行期间参观了古罗马遗址。

We visited the Roman ___ruins during our trip to Italy.

我们的主要目的就是去看那些古老的遗迹。

Our main goal was to see the ancient ___ruins.

考古学家正在仔细挖掘一座中世纪城堡的废墟。

Archaeologists are carefully excavating the ___ruins of a medieval castle.