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

You want to cry, but dared not open them, only to stay here to see you go, I want to ask so I am really willing to let go, are not able to retain, but to accept.

想喊你，却没敢开口，最后只有留在这里看你走，我想问我是否真愿意就这样放手，竟然无法挽留，只好接受。

youdao

Well, when they are not hibernating, you can find them in open areas.

当它们没有在冬眠的时候，你可以在空旷的地方发现它们。

youdao

He said that when the bombs went off, the university gates were closed, and campus security would not open them.

CNN: January 17, 2013 -- Updated 2129 GMT (0529 HKT)

Their exact aims are unclear but they have threatened to attack the capital, Kinshasa, if President Kabila did not open negotiations with them.

BBC: DR Congo crisis: M23 rebel leader 'flies to Uganda'

Boley said Tuck is wily at making sure to use the triple and double word slots, and not leave them open for him.

WSJ: Super Bowl: New York Giants Play Words With Friends