名词
中文翻译：牛角
同义词：
['horn', 'antler例句：1. The bulla ossea is a symbol of strength and power.（牛角象征着力量和权力。）']
例句：
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1. The bulla ossea is a symbol of strength and power.
牛角象征着力量和权力。
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2. The bulla ossea was used in ancient times to make tools.
牛角在古代被用来制作工具。
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3. The bulla ossea is now protected by law.
牛角现在受到法律保护。