游客们爬上陡峭的山坡，参观古代希腊城市的高地卫城。

Tourists climbed the steep hillside to visit the ancient Greek city's ___acropolis.

游客们爬上古城的高地，俯瞰整个城市的废墟。

Tourists climbed up to the ancient ___acropolis to view the ruins of the entire city.