名词
中文翻译：未定名的
同义词：
['unknown', 'undetermined', 'unidentified']
例句：
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1. The team's performance was unpredictable, leaving us with no clear picture of what they could achieve.
团队的表现不可预测，让我们无法清晰地了解他们可能取得的成就。
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2. The discovery of this new species has opened up a whole new world of possibilities for scientists.
这一新物种的发现为科学家打开了一个全新的可能性世界。
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3. The unidentified object in the sky caused quite a stir among the locals.
天空中不明飞行物引起了当地人相当大的轰动。