形容词
中文翻译：不清楚的
同义词：
['vague', "indistinct例句：1. The instructions were so unclear that I couldn't figure out what to do.（说明太模糊了，我无法理解该怎么做。）2. The painting is unfinished", 'making it difficult to determine its true value.（这幅画未完成，难以确定其真实价值。）']
例句：
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1. The instructions were so unclear that I couldn't figure out what to do.
说明太模糊了，我无法理解该怎么做。
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2. The painting is unfinished, making it difficult to determine its true value.
这幅画未完成，难以确定其真实价值。
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3. The teacher asked for volunteers to clarify the definition of the term "ecosystem."
老师要求志愿者来澄清“生态系统”的定义。