identity sign

例句：

1. 1. The police officer handed me a piece of paper with my name on it as a form of identification.
   警察递给我一张纸，上面写着我的名字作为身份证明。
2. 2.When she received the package, she immediately recognized the signature on the identity sign as her mother's.
   当她收到包裹时，她立刻认出了身份标志上的签名是她母亲的。
3. 3. The company issued a new identity card to all employees as part of their annual security check.
   公司为所有员工发放了新的身份证明卡，作为年度安全检查的一部分。