unsigned copy

例句：

1. 1.The unsigned document was never meant to be signed.
   这份未签字的文件从未打算被签署。
2. 2.The unsigned agreement is still in effect.
   未签字的协议仍然有效。
3. 3.The unsigned signature is not legally binding.
   未签字的签名在法律上没有约束力。