play cards close to chest1 SECRETto keep your plans, thoughts, or feelings secret 〔对自己的计划、想法、感觉〕秘而不宣,守口如瓶 → play/keep your cards close to your chest at card1(5)
2 to keep secret what you are doing in a situation 对自己的行为秘而不宣play your cards close to your chest• Roslin, known for playing his cards close to his vest, declined to comment.
→ play your cards close to your chest at play1(9)