我们需要部门主管的签字批准才能开始这个项目。
We need the department head's ___sign-offs to start this project.
她在邮件的结尾添加了一个简短的道别。
She added a brief ___sign-off at the end of the email.
在提交报告前,我们需要主管的签字确认。
We need the manager's ___sign-offs before submitting the report.