closed-door policy

例句：

1. 1.The government has implemented a closed-door policy to prevent leaks of sensitive information.
   政府实施了一项闭门政策，以防止敏感信息的泄露。
2. 2. The company's closed-door policy is designed to maintain confidentiality and ensure that only authorized personnel have access to sensitive data.
   公司的闭门政策旨在维护机密性和确保只有授权人员才能访问敏感数据。
3. 3. During the negotiations, the two sides agreed to adhere to the closed-door policy to avoid any potential conflicts ormisunderstandings.
   在谈判期间，双方同意遵守闭门政策，以避免任何潜在的冲突或误解。