名词
中文翻译：三叉齿兽
同义词：
['trilobite', 'trilobitid', 'trilobiter']
例句：
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1.The Triarthrus fossils are rare and valuable.
三叉齿兽化石稀有且珍贵。
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2. The discovery of Triarthrus in the fossil record is a significant breakthrough.
在化石记录中发现三叉齿兽是一个重要的突破。
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3. The Triarthrus species has been extinct for millions of years.
三叉齿兽物种已经灭绝了数百万年。