形容词
中文翻译：清晰的
同义词：
['straight', 'plain', 'transparent', 'lucid', 'distinct', 'crystal-clear']
例句：
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1. The sky was clear and the stars shone brightly.
天空晴朗，星星闪烁着。
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2. She had a clear understanding of the problem.
她对这个问题有清晰的理解。
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3. The water in the glass is clear as glass.
玻璃杯里的水清澈透明。