动词
中文翻译：保守
同义词：
['protect', 'safeguard', 'keep secret']
例句：
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1. We must always be careful to keep our secrets safe.
我们必须始终小心，确保我们的机密安全。
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2. The government is accused of keeping secrets from the public.
政府被指控对公众隐瞒信息。
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3. She was determined to keep her business plans a secret until she had made them.
她决心保密直到她完成了商业计划。