缩写
中文翻译：不具体
同义词：
['unclear', 'unclear', 'ambiguous']
例句：
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1. The instructions were so unclear that I couldn't follow them.
说明非常模糊，我无法理解。
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2. The results are still unclear, and further research is needed.
结果仍然不清楚，需要进一步研究。
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3. The project was CISM, meaning it was not clear or defined enough to proceed.
项目是CISM，意味着它不够清晰或定义，无法继续进行。