All candidates are carefully vetted for security reasons.

由于安全的缘故，所有的求职申请人都要经过严格的审查。

《牛津词典》

Some lines of the document have been blacked out for security reasons.

为安全起见，这份文件的一些句子被涂掉了。

《牛津词典》

youdao

So this is a very capable platform," For security reasons, officials will not say how large a bomb the M-ATVs can withstand.

VOA: standard.2009.11.02

"I'm sure that it has security reasons. Nevertheless, I think they could have done a better job."

VOA: standard.2010.02.17

Joan Johnson-Freese of the Naval War College says there are national security reasons to rethink that policy.

VOA: standard.2010.04.21

For security reasons, the Indianapolis had been out of radio contact with the Navy.

FORBES: Fact and Comment

"The proposal... is not acceptable to the home secretary for national security reasons, " the letter said.

BBC: Passport control at Heathrow's Terminal 5

The spokesman added that actual details of the plans would not be published for security reasons.

BBC: Parts of London could be evacuated in the event of an attack