名词
中文翻译：Unknown
同义词：
['unstable', 'indeterminate', 'unclear', 'ambiguous']
例句：
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1. The financial situation of the company is unstable due to the sudden drop in sales.
由于销售额的突然下降，公司的财务状况不稳定。
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2. The report was unclear, leaving many questions unanswered.
报告含糊不清，留下了许多未解答的问题。
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3. The new policy has left us with an unclear understanding of its implications.
新政策让我们对它的意涵感到困惑。