名词
中文翻译：未定名的
同义词：
['unknown', 'undetermined', 'unidentified']
例句：
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1.The discovery of this new species is a significant breakthrough in our understanding of the universe.
这一新物种的发现是我们对宇宙理解的重大突破。
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2. The scientist was unable to identify the source of the mysterious glow in the sky.
这位科学家无法确定天空中神秘光芒的来源。
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3.The team was left with no choice but to ugrandite the situation and continue their research.
团队别无选择，只能对情况保持沉默并继续他们的研究。