短语
中文翻译：保守秘密
同义词：
['keep silent', 'keep mum', 'keep quiet']
例句：
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1.She played close to the chest about her secret job.
她保守着关于她的秘密工作。
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2.He kept close to the chest about his past life.
他保守着他过去的生活。
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3. The couple played close to the chest about their financial problems.
这对夫妇保守着他们的财务问题。