They've never been opened.

它们从来都没有被打开过。

youdao

And throw away screw-topped or crimp-topped jars and bottles even if they have never been opened.

VOA: special.2010.07.19

The current backlog is about 1.2 million applications, and about 700, 000 of those have never even been opened, according to CBS News.

FORBES: Patent Reform and the Constitution

In the twelve years since the school opened, there has never been an accident.

NEWYORKER: Battleground America