副本与原件一样，只有一份，套印无效。有效期至。

This copy is the same as the original one only for file. Overprinting is invalid. Valid to XX.

youdao

副本与原件一样，只有一份，套印无效。有效期至。

This copy is the same as the original one only for file. Overprinting is invalid. Valid to XX.

youdao