动词短语
中文翻译：保守秘密
同义词：
['keep under wraps', 'keep mum', 'keep quiet']
例句：
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1. Sheplayed close to the vest about her new job offer.
她对新工作邀请守口如瓶。
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2.The company kept close to the vest about its plans for the future.
公司对它的未来发展计划守口如瓶。
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3.He played close to the vest about his secret love for her.
他对她的秘密爱情守口如瓶。