名词
中文翻译：Unknown
同义词：
['secret', 'secretive', 'concealed', 'hidden', 'concealed', 'concealing', 'concealment']
例句：
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1. The scientist kept his findings a secret for years.
这位科学家多年来一直保守着他的研究结果。
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2. She was secretive about her past relationships.
她对她过去的恋情守口如瓶。
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3. The government has been concealing its plans from the public.
政府一直在向公众隐瞒其计划。