罗马的建造者完善了由不同的石块构成的半圆形拱门。
Roman builders perfected the semicircular arch made of separate blocks of stone.
拱门和半圆形台阶以及周围看起来像建筑的房间让人想起城市广场。
The arches and semi-circular steps are reminiscent of a city square, with the rooms around looking like buildings.
拱门和半圆形台阶以及周围看起来像建筑的房间让人想起城市广场。
The arches and semi-circular steps are reminiscent of a city square, with the rooms around looking like buildings.
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