Upon receiving the bid documents, the bid inviter shall sign for and safe-keep them but may not open them.

招标人收到投标文件后，应当签收保存，不得开启。

youdao

Upon receiving the bid documents, the bid inviter shall sign for and safe-keep them but may not open them.

招标人收到投标文件后，应当签收保存，不得开启。

youdao