名词中文翻译
中文翻译：半圆石环
同义词：
['半圆石，环形石例句：1. The half keystone ring on the wall is a beautiful work of art.（墙上的半圆石环是一件美丽的艺术品。）']
例句：
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1. The half keystone ring on the wall is a beautiful work of art.
墙上的半圆石环是一件美丽的艺术品。
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2.The half keystone ring was made by an ancient civilization.
这个半圆石环是由一个古代文明制作的。
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3. The half keystone ring has been passed down through generations as a symbol of love and devotion.
这个半圆石环作为爱情和奉献的象征，已经传遍了世代。