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》

This is another important factor for security reasons.

这个问题对于确保安全性非常重要。

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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

Clinton said the United States and NATO allies are not in Afghanistan for altruistic reasons, but rather to counter a real security threat from what she termed a "syndicate of terrorism" led, funded and inspired by al-Qaida.

VOA: standard.2009.11.09

She said that's because Congress itself tightened entry rules for Iraqis for security reasons.

NPR: Iraqi Exodus Draws Senate's Attention

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

FORBES: Fact and Comment

Each page has to be inspected and redacted or withheld, if necessary for security reasons.

WSJ: Email Trove Is Big Job for Bush Library