hidden file

例句：

1. 1. The hidden file was a surprise for the team leaders.
   这个隐藏的文件让团队领导感到惊讶。
2. 2.The company kept the secret file from the public.
   公司将秘密文件保密，不让公众知晓。
3. 3.The hidden file contained sensitive information that could compromise the security of the organization.
   隐藏的文件包含了可能危及组织安全的信息。